1. Yusoff, M.K., M.R. Yacob, M.Z. Ismail and S. Johan, 2017. River Water Quality Status of Tasik Pergau and its Viocinty, Jeli Kelantan. In: Gunung Basor dan Tasik Pergau, Kelnatnan: Kepelbagaian Biologi, Ibrahim, Z., M.R.C. Abdullah, R. Abdu Rahman, N.N.D. Abong, S.M. Nordin and A. Latiff (Eds.)., Jabatan Perhutanan Semenanjung, Malaysia, pp: 18-28.
2. Zulkeflee, Z., Z.H. Shamsuddin, A.Z. Aris, M.K. Yusoff, D. Komilis and A. Sanchez, 2016. Performance, yield and characteristics of bioflocculants (UPMBF13) produced by Bacillus subtilis UPMB13 during submerged and solid-state fermentation. Global Nest J., 18: 611-620.
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3. Zulkeflee, Z., Z.H. Shamsuddin, A.Z. Aris, M.K. Yusoff, D. Komilis and A. Sanchez, 2016. Glutamic acid independent production of bioflocculants by Bacillus subtilis UPMB13. Environ. Process., 3: 353-367.
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4. Yusoff, M.K., S. Johan and M.Z. Ismail, 2016. River Water Quality Status of Kinta Valley, Geopark, Perak. In: Aspiring Geopark Lembah Kinta, Perak: Geology, Archeology, Biodiversity and Socio-Economy, Daud, M.S., T.R.T. Mohamed, O. Kangsar, N.A.M. Nor and N.A. Rashidi et al. (Eds.)., Jabatan Mineral dan Geosains, Malaysia.
5. Zulkeflee, Z., J.M. Pauzi, M.K. Yusoff and N.R. Jamil, 2015. Cost of water acquisition from forested watershed. Procedia Environ. Sci., 30: 338-343.
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6. Aris, A.Z., W.Y. Lim, S.M. Praveena, M.K. Yusoff, M.F. Ramli and H. Juahir, 2014. Water quality status of selected rivers in Kota Marudu, Sabah, Malaysia and its suitability for usage. Sains Malaysiana, 43: 377-388.
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7. Hussain, H., M.K. Yusoff, M.F. Ramli, P.A. Latif, H. Juahir and M.A.M. Zawawi, 2013. Temporal patterns and source apportionment of nitrate-nitrogen leaching in a paddy field at Kelantan, Malaysia. Pak. J. Biol. Sci., 16: 1524-1530.
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8. Gazzaz, N.M., M.K. Yusoff, H. Juahir, M.F. Ramli and A.Z. Aris, 2013. Water quality assessment and analysis of spatial patterns and temporal trends. Water Environ. Res., 85: 751-767.
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9. Ajorlo, M., R.B. Abdullah, M.K. Yusoff, R.A. Halim, A.H.M. Hanif, W.D. Willms and M. Ebrahimian, 2013. Multivariate statistical techniques for the assessment of seasonal variations in surface water quality of pasture ecosystems. Environ. Monit. Assess., 185: 8649-8658.
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10. Zulkeflee, Z., A.Z. Aris, Z.H. Shamsuddin and M.K. Yusoff, 2012. Cation dependence, pH tolerance and dosage requirement of a bioflocculant produced by Bacillus spp. UPMB13: Flocculation performance optimization through Kaolin assays. Scient. World J. 10.1100/2012/495659.
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11. Yusoff, M.K., A.Z. Aris, M.F. Ramli and L.Abd. Manaf, 2012. Existing Environment. In: Colurs of Kota Marudu, Sabah Malaysia (Cofee Table Book), Yusoff, F.M., F.H. Ibrahim and A.N. Abd. Ghani (Eds.)., Universiti Putra Malaysia Press , Malaysia, pp: 27-48.
12. Mohamat-Yusuff, F., S.Z. Zulkifli, A. Ismail, M.K. Yusof and T. Otake, 2012. Field survey and spatial distribution of tropical neogastropod, Thais spp., along Malaysian coastal area. Acta Biol. Malays., 1: 9-17.
13. Khan, R.A., S.M. Zain, H. Juahir, M.K. Yusoff and T.I.T. Hanidza, 2012. Using Principal Component Scores and Artificial Neural Networks in Predicting Water Quality Index. In: Chemometrics in Practical Applications, Varmuza, K. (Ed.)., InTech, Croatia.
14. Gazzaz, N.M., M.K. Yusoff, M.F. Ramli, A.Z. Aris and H. Juahir, 2012. Characterization of spatial patterns in river water quality using chemometric pattern recognition techniques. Mar. Pollut. Bull., 64: 688-698.
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15. Gazzaz, N.M., M.K. Yusoff, A.Z. Aris, H. Juahir and M.F. Ramli, 2012. Artificial neural network modeling of the water quality index for Kinta River (Malaysia) using water quality variables as predictors. Mar. Pollut. Bull., 64: 2409-2420.
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16. Yusoff, M.K., S. Johan, A.H.M. Yusoff and A.Z. Aris, 2011. River Water Quality Assessment of Imbak Canyon Conservation Area. In: Imbak Canyon Conservation Area, Sabah-Geology, Biodiversity and Socio-Economic Environment, Latiff, A. and W. Sinun (Eds.)., Akdemi Sains Malaysia, Malaysia, pp: 71-84.
17. Salemi, H., M.A.M. Soom, T.S. Lee, S.F. Mousavi, A. Ganji and M.K. Yusoff, 2011. Application of AquaCrop model in deficit irrigation management of winter wheat in arid region. Afr. J. Agric. Res., 6: 2204-2215.
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18. Salemi, H., M.A.M. Soom, T.S. Lee, M.K. Yusoff and D. Ahmad, 2011. Effects of deficit irrigation on water productivity and maize yields in arid regions of Iran. Pertanika J. Trop. Agric. Sci., 34: 207-216.
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19. Salemi, H., M.A.M. Soom, T.S. Lee and M.K. Yusoff, 2011. Impact of water resources availability on agricultural sustainability in the Gavkhuni River Basin, Iran. Pertanika J. Sci. Technol., 19: 213-227.
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20. Saghravani, S.R., S.A.B. Mustapha, S.B. Ibrahim, M.K. Yusoff and S.F. Saghravani, 2011. Phosphorus migration in an unconfined aquifer using MODFLOW and MT3DMS. J. Environ. Eng. Landsc. Manage., 19: 271-277.
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21. Juahir, H., S.M. Zain, M.K. Yusoff, T.I. Tengku Hanidza, A.S. Mohd Armi, M.E. Toriman and M. Mokhtar, 2011. Spatial water quality assessment of Langat River Basin (Malaysia) using environmetric techniques. Environ. Monit. Assess., 173: 625-641.
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22. Juahir, H., M.F. Kasim, M. Abdul Zali and M.K. Yusoff, 2011. An Artificial Neural Network (ANN) Application for Water Quality Index (WQI) Numerical Modelling in Gunung Benom. In: Wildlife Reserve, Pahang: Geology, Biodiversity and Socio-economic Environment, Latiff, A., M.S. Leman and A. Norhayati (Eds.)., Akdemi Sains, Malaysia, pp: 63-70.
23. Aris, A.Z., Y.L. Wan, N.M. Isa, M.K. Yusoff, S. Johan and A.H.M. Yusoff, 2011. Investigationon Hydrochemistry Characteristics of Imbak Canyon Conservation Area. In: Imbak Canyon Conservation Area, Sabah-Geology, Biodiversity and Socio-Economic Environment, Latiff, A. and W. Sinun (Eds.)., Akdemi Sains Malaysia, Malaysia, pp: 85-94.
24. Ajorlo, M., R. Abdullah, A.H.M. Hanif, R.A. Halim and M.K. Yusoff, 2011. Impacts of livestock grazing on selected soil chemical properties in intensively managed pastures of Peninsular Malaysia. J. Trop. Agric. Sci., 34: 109-121.
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25. Zawawi, M.A.M., M.K. Yusoff, H. Hussain and S. Nasir, 2010. Nitrate-nitrogen concentration variationin groundwater flow in a paddy field. J. Inst. Eng. Malaysia, 71: 2-10.
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26. Yusoff, M.K., A.Z. Aris, M.H. Abdullah and M. Mokhtar, 2010. Physico-Chemical Characteristics of the Rivers at Eucalyptus camp, Maliau Basin, Sabah. In: Maliau Basin-Physical Environment and Biological Diversity of the Northern Rim, Komo, I., M. Othman, I.M. Said and A. Latiff (Eds.)., Academy of Sciences Malaysia, Kuala Lumpur, pp: 66-75.
27. Tengku, H., S.M. Zain, J. Hafizan, M.K. Yusoff and A.M. Latifah, 2010. Organophosphate exposure: A preliminary assessment on the use of pesticide intensity score to evaluate exposure among fruit growers. EnvironmentAsia, 3: 203-216.
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28. Shaharuddin, M.S., M.M. Nor Kidahus, S. Sumarlan, M.K. Yusoff and Y.M. Ismail et al., 2010. Dental fluoride and its relationship with fluoride levels in drinking water in three states in Malaysia. Res. J. Med. Sci., 4: 20-24.
29. Ramlia, M.F., N. Yusof, H.Z.M. Shafri, M.A. Misman, H. Juahir and M.K. Yusoff, 2010. Comparison between topographic expression of RADARSAT and DEM in Simpang Pulai to Pos Selim, Malaysia. EnvironmentAsia, 3: 93-97.
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30. Ramli, M.F., N. Yusof, M.K. Yusoff, H. Juahir and H.Z.M. Shafri, 2010. Lineament mapping and ist application in landslide assessment: A review. Bull. Eng. Geol. Environ., 69: 215-233.
31. Mohamat-Yusuff, F., S.Z. Zulkifli, A. Ismail, H. Harino, M.K. Yusoff and T. Arai, 2010. Imposex in Thais gradata as a biomarker for TBT contamination on the southern coast of Peninsular Malaysia. Water Air Soil Pollut., 211: 443-457.
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32. Juahir, H., S.M. Zain, A.Z. Aris, M.K. Yusoff and M.B. Mokhtar, 2010. Spatial assessment of Langat river water quality using chemometrics. J. Environ. Monit., 12: 287-295.
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33. Juahir, H., S.M. Zain, A.Z. Aris, M.K. Yusof, M.A.A. Samah and M. Mokhtar, 2010. Hydrological trend analysis due to land use changes at Langat River Basin. Environ. Asia, 3: 20-31.
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34. Harun, R., A. Sulong, Y.H. Wai, T.H. Ismail, M.K. Yusoff, L.A. Manaf and H. Juahir, 2010. Impacts of forest changes on indigenous people livelihood in Pekan district, Pahang. EnvironmentAsia, 3: 156-159.
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35. Budin, K., M. Mokhtar, A.Z. Aris, M.H. Abdullah, Y.H. Lee and M.K. Yusoff et al., 2010. Concentration of Heavy Metals in the Sediments if River in Maliau Basin, Sabah. In: Maliau Basin-Physical Environment and Biological Diversity of the Northern Rim, Komo, I., I.M. Othman, M. Said and A. Latiff (Eds.)., Academy of Sciences Malaysia, Kuala Lumpur, pp: 76-85.
36. Aris, A.Z., M.H. Abdullah, S.M. Praveena, M.K. Yusoff and H. Juahir, 2010. Extenuation of saline solutes in shallow aquifer of a small tropical island: A case study of Manukan Island, North Borneo. Environ. Asia, 3: 84-92.
37. Aris, A.Z., M. Mokhtar, M.H. Abdullah, K. Budin and M.K. Yusoff et al., 2010. A Multivariate Statistical Analysis of Water Chemistry: The Maliau Basin. In: Maliau Basin: Physical Environment and Biological Diversity of the Northern Rim, Komo, I., I.M. Othman, M. Said and A. Latiff (Eds.)., Academy of Sciences Malaysia, Kuala Lumpur, pp: 101-112.
38. Ajorlo, M., R.B. Abdullah, A.H.M. Hanif, R.A. Halim and M.K. Yusoff, 2010. How cattle grazing influences heavy metal concentrations in tropical pasture soils. Pol. J. Environ. Stud., 19: 895-902.
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39. Shaharuddin, M.S., Y.M. Kamil, Y.M. Ismail, R.M. Firuz, I.S. Aizat and A.M. Yunus, 2009. Fluoride concentration in malaysian drinking water. Am. Eurasian J. Agric. Environ. Sci., 6: 417-420.
40. Mokhtar, M.B., A.Z. Aris, M.H. Abdullah, M.K. Yusoff and M. Abdullah et al., 2009. A pristine environment and water quality in perspective: Maliau Basin, Borneo's mysterious world. Water Environ. J., 23: 219-228.
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41. Juahir, H., S.M. Zain, R.A. Khan, M.K. Yusoff and M.B. Mokhtar and M.E. Toriman, 2009. Using chemometrics in assessing langat river water quality and designing a cost-effective water sampling strategy. Maejo Int. J. Sci. Technol., 3: 26-42.
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42. Juahir, H., M.F. Kasim, M.A.A. Samah, M.K. Yusoff, J. Jusoh and S.B. Saadudin, 2009. The Application of Statistical Process Control Techniques in Water Quality Monitoring at Muda River Malaysia. IUP J. Environ. Sci., 3: 39-45.
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43. Ghani, P.H.A., M.K. Yusoff, L.A. Manaf and M.B. Daud, 2009. Ammonium ion trend in selected Malaysian river. World Applied Sci. J., 6: 442-448.
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44. Ah, T., K.Y. Mohd, M.M. Nik, G. Joo and G. Huang, 2009. Effect of N and K fertilizers on nutrient leaching and groundwater quality under mature oil palm in Sabah during the monsoon period. Am. J. Applied Sci., 6: 1788-1799.
45. Abd Manaf, L., M.L.C. Jusoh, M.K.Y. Tengku H.T. Ismail, R. Harun and H. Juahir, 2009. Influences of bedding material in vermicomposting process. Int. J. Biol., 1: 81-91.
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46. Yusoff, M.K., 2008. Effect of Solid Waste Landfill Sites on Surface Water Quality. In: Sanitary Landfill-Mechanism, Processes, Potential Impacts and Post-Closure Management, Yusoff, M.K., L. Abd. Manaf and H. Juahir (Eds.)., Universiti Putra Malaysia Press, Serdang, pp: 33-54.
47. Yusoff, M.K. and I.A. Al-Hawas, 2008. Effect of landfill leachate on groundwater quality. ICFAI J. Environ. Sci., 2: 32-43.
48. Ramli, M.F., S. Mustapha, M.K. Yusoff, N.M. Zin, S.J. Cheong, S.C. Ying and M. Abd. Manap, 2008. Landuse change using Landsat TM for Cameron Highlands, Malaysia. Asian J. Microbiol. Biotechnol. Environ. Sci., 10: 215-218.
49. Juahir, H., M.K. Yusoff, S.M. Zain, M.F. Ramli, O. Oksel, Z. Mat Perak and A.R. Haron, 2008. The prediction of suspended solids of river in forested catchment using artificial neural network. Malaysian Forest., 71: 201-210.
50. Haniba, N.M.M., M.N. Hassan, M.K. Yusoff and M. Rahman, 2008. Leachate Quality and Landfill Age: An Overview. In: Sanitary Landfill-Mechanism, Processes, Potential Impacts and Post-Closure Management, Yusoff, M.K., L. Abd. Manaf and H. Juahir (Eds.)., Universiti Putra Malaysia Press, Serdang, pp: 100-111.
51. Sim, Ch.H., M.K. Yusoff, B. Shutes, S. Ch.Ho and M. Mansor, 2007. Nutrient removal in a pilot and full scale constructed wetland, Putrajaya city, Malaysia. J. Environ. Manage., 88: 307-317.
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52. Shaharuddin, Sumarlan, M. Yunus, Dasrilsyah and M.K. Yusoff, 2007. Relationship between natural fluoride levels in non-fluoridated drinking water dental fluorosis occurence among school children: A cross sectional study in Kota Kinabalu, Sabah, Malaysia. Dentika Dental J., 12: 31-33.
53. Shaharuddin, M.N. Kidahus, M. Yunus, Dasrilsyah and M.K. Yusoff, 2007. Prevalence of dental fluorosis among school children in Kuala Terengganu, terengganu, Malaysia: A preliminary study. Dentika Dental J., 12: 18-21.
54. Zaki, H.M., A. Arifin, S. Ngumbang, A.M. Azani, I.F. Hanum, M.K. Yusoff and M.N. Muhamad, 2006. Comparison of vegetation composition in rehabilitated area and secondary forest in Pasoh Forest Reserve, Negeri Sembilan. Malaysian Forest., 69: 145-154.
55. Yusoff, M.K., M.F. Ramli, H. Juahir, S. Mustapha, M.R. Ismail, Z.M. Perak and A.R. Haron, 2006. Relationship between suspended solids and turbidity of river in forested catchment. Malayan Forest., 69: 155-162.
56. Yusoff, M.K., M.F. Ramli and S. Mustapha, 2006. Water Quality Status of Malaysian Rivers. In: Environmental Sciences and Management, Shamsudin, M.N., H.M. Ibrahim, W.N.A. Sulaiman, H. Juahir, M.I. Yaziz and M.N. Hassan (Eds.)., Universiti Putra Malaysia Press, Serdang, pp: 215-226.
57. Ramli, M.F., M.K. Yusoff, S. Mustapha and Z.A. Rahman, 2006. Mitigating Adverse Impact of Hillside Development. In: Environmental Sciences and Management, Shamsudin, M.N., H.M. Ibrahim, W.N.A. Sulaiman, H. Juahir, M.I. Yaziz and M.N. Hassan (Eds.)., Universiti Putra Malaysia Press, Serdang, pp: 292-324.
58. Ramli, M.F., M.K. Yusoff, S. Mustapha and H.S. Toh, 2006. The effect of digital elevation model scale factor on soil erosion studies. J. Environ. Hydrol., 14: 1-9.
59. Mustapha, S., M.K. Yusoff and M.F. Ramli, 2006. Ecological Risk Assessment. In: Environmental Sciences and Management, Shamsudin, M.N., H.M. Ibrahim, W.N.A. Sulaiman, H. Juahir, M.I. Yaziz and M.N. Hassan (Eds.)., Universiti Putra Malaysia Press, Serdang, pp: 559-587.
60. Harun, R., M.K. Yusoff, A. Muda, W.H.W. Aziz and H.S. Ramli, 2006. Inculcating Sustainable Ethics in Protected Areas. In: Management and Status of Resources in Protected Areas of Peninsular Malaysia, Othman, S., S.H. Yatim, S. Elagupillay, S.M. Nor, N. Ahmad and S.A. Mohd Sab (Eds.)., Percetakan Nasional Malaysia Berhad, Kuala Lumpur, pp: 61-66.
61. Ramli, M.F., W.N.A. Sulaiman, M.K. Yusoff, Y.Y. Low and M.A. Manap, 2005. Open source Geographical Resources Analysis Support System (GRASS) for landslide hazard assessment. Disaster Prevention Manage.: Int. J., 14: 522-532.
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62. Ramli, M.F., M.K. Yusoff, S. Mustapha and C.S. Mei, 2005. Erosion potential assessment using open source Geographical Resources Analysis Support System (GRASS) for Langkawi Island, Malaysia. Int. J. Geoinform., 1: 91-94.
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63. Ismail, M.R., M.K. Yusoff and M. Mahmood, 2004. Growth, water relations, stomatal conductance and proline concentration in water stressed banana (Musa spp.) plants. Asian J. Plant Sci., 3: 709-713.
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64. Hamzah, M.Z., F.H. Ibrahim, M.A. Alias, N.M. Majid, M.K. Yusuf and K. Fujiwara, 2004. Recovery of lowland Dipterocarp forests under the Malayan uniform system. Tropics, 14: 103-109.
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65. Yusoff, M.K., M.F. Ramli, J.T. Law and W.N.A. Sulaiman, 2003. Soil erosion of a logged-over tropical forest, Pasoh, Negeri Sembilan. Bull. Geol. Soc. Malaysia, 46: 111-114.
66. Sulaiman, W.N.A., M.F. Ramli, M.K. Kamaruddin and M.K. Yusoff, 2003. Preliminary analysis of recession flow characteristics of granitic catchments. Bull. Geol. Soc. Malaysia, 46: 291-293.
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67. Yusoff, M.K., 2002. Water Quality Status of Melaka River, Langkawi Island, Malaysia. In: Tropical Marine Environment: Charting Strategies for the Millennium, Yusoff, F.M., M. Shariff, H.M. Ibrahim, S.G. Tan and S.Y. Tai (Eds.)., MASDEC, Universiti Putra Malaysia, Malaysia, pp: 315-323.
68. Marryanna, L., H.M. Ibrahim, M.K. Yusoff and M.S. Abdul Rashid, 2002. The Application of GIS Solution for Water Quality Monitoring: A Case Study in Malacca River Basin. In: Tropical Marine Environment : Charting Strategies for the Millennium, Yusoff, F.M., M. Shariff, H.M. Ibrahim, S.G. Tan and S.Y. Tai (Eds.)., MASDEC, Universiti Putra Malaysia, Malaysia, pp: 793-809.
69. Faridah-Hanum, I., M.K. Yusoff and A. Latiff, 2002. Perlis State Park: Its Role in Biodiversity Conservation and Research. In: Kepelbagaian Biologi dan Pengurusan Taman Negeri Perlis-Persekitaran Fizikal, Biologi dan Sosial Wang Mu [Biodiversity and Management of Perlis State Park-Physical, Biological and Social Environments of Wang Mu], Latiff, A., K. Osman, Y.A. Rahman and I. Faridah-Hanum (Eds.)., Forestry Department, Perrlis, Percetakan Watan Sdn. Bhd., Kuala Lumpur, pp: 45-64.
70. Yusoff, M.K. and A.R. Haron, 1999. Water quality status of Air Hitam forest reserve. Pertanika J. Trop. Agric. Sci., 22: 127-129.
71. Yusoff, M.K., W.N.A. Sulaiman, A. Muda, R. Abdullah and A. Anton, 1997. Water quality profile of Sungai Terengganu and Sarawak using DOE-WQI. J. Ensearch, 10: 47-53.
72. Sulaiman, W.N.A., M.K. Yusoff, A. Muda, R. Abdullah and A. Anton, 1997. Hydrology, land use and socio-economic considerations in the classification of Sungai Terengganu and Sungai Sarawak. J. Ensearch, 10: 133-139.
73. Muda, A., R. Abdullah, W.N.A. Sulaiman, M.K. Yusoff and A. Anton, 1997. Land uses of a river basin: A case study of Terengganu river classification. J. Ensearch, 10: 141-149.
74. Ismail, M.R. and M.K. Yusoff, 1996. Effects of irradiance on growth, photosynthesis rate and yield of melon (Cucumis melo) grown in hydrophonics. Pertanika J. Trop. Agric. Sci., 19: 103-110.
75. Rahman, C.R.A., W.N.A. Sulaiman and M.K. Yusoff, 1993. Preliminary assessment of soil erosion for the Linggi river Basin. Ilmu Alam, 22: 61-67.
76. Yusoff, M.K., W.N. Sulaiman and Z. Sharif, 1990. A general survey of nitrate-nitrogen levels in well-water under different landuses. Pertanika, 13: 79-83.
77. Suki, A., M.K. Yusoff and M.T. Poe, 1988. Water quality profile of Sg. Langat. Pertanika, 11: 273-281.
78. Yusoff, M.K. and A.M. Yunus, 1987. Distribution of salinity of surface water and electrical conductivity of soil water extract in a coastal area. Pertanika, 10: 225-231.