1. Pathak, H., 2018. Ozone Layer Depletion. CreateSpace Independent Publishing Platform, USA., ISBN: 1987691202, Pages: 36.
2. Pathak, H., 2018. Environmental education a medium for improving human values: A overview. Annals Ecol. Environ. Sci., 2: 24-26.
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3. Pathak, H., 2017. Uranium. CreateSpace Independent Publishing Platform, USA., ISBN-13: 978-1976235054, Pages: 34..
4. Pathak, H., 2017. Role of vocational education and training for sustainable development with special reference to the India. J. Plus Educ., 18: 170-175.
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5. Pathak, H., 2017. Rivers conservation challenges and opportunities: A case study of BundelKhand, Madhya Pradesh, India. Int. J. Environ. Sci. Natural Resour., 7: 1-3.
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6. Pathak, H., 2017. Environmental Pollution. Lambert Academic Publication, Germany, ISBN: 978-620-2-01144-0, Pages: 84..
7. Pathak, H., 2016. Socio-economical, environmental evaluation of Ken-Betwa river link project, India. Present Environ. Sustainable Dev., 10: 35-42.
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8. Pathak, H., 2016. Photochemical Smog. CreateSpace Independent Publishing Platform, USA., ISBN: 978-1541065680, Pages: 42.
9. Pathak, H., 2016. Interlinking of Rivers in India: A Socio-economic Environmental Evaluation. CreateSpace Independent Publishing Platform, USA., ISBN-13: 978-1530033478, Pages: 32.
10. Pathak, H., 2015. Environmental Audit. CreateSpace Independent Publishing Platform, USA., ISBN-13: 978-1503363588, Pages: 26.
11. Pathak, H., 2015. Effect of water borne diseases on Indian economy: A cost-benefit analysis. Analele Universitătii din Oradea, Seria Geografie, 1: 74-78.
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12. Pathak, H., 2015. Climate Change. CreateSpace Independent Publishing Platform, USA., ISBN-13: 978-1503363380, Pages: 26.
13. Pathak, H., 2015. 7.8 Magnitude Earthquake in Nepal: Walking of Disaster on Himalaya. CreateSpace Independent Publishing Platform, USA., ISBN-13: 978-1512123234, Pages: 30.
14. Pathak, H., 2014. Jammu and Kashmir Floodcrisis: A Grim Reminder of Increasing Climate Change. CreateSpace Independent Publishing Platform, USA., ISBN: 1502530791, Pages: 24.
15. Pathak, H., 2013. Water quality studies of two rivers at Bundelkhand region, MP, India: A case study. U.P.B. Sci. Bull., Ser. B, 75: 81-90.
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16. Pathak, H., 2013. Water Quality and GIS. CreateSpace Independent Publishing Platform, USA., ISBN: 1482380331, Pages: 26.
17. Pathak, H., 2013. Soil Pollution. CreateSpace Independent Publishing Platform, USA., ISBN-13: 978-1492762362, Pages: 26.
18. Pathak, H., 2013. Renewable Energy Resources. CreateSpace Independent Publishing Platform, USA., ISBN-13: 978-1492920441, Pages: 30.
19. Pathak, H., 2013. Light Pollution. CreateSpace Independent Publishing Platform, USA., ISBN-13978-1492896302, Pages: 24.
20. Pathak, H., 2013. Kedar Nath Tragedy: A Shriek of Abrupt Himalayan Environment. CreateSpace Independent Pub, USA., ISBN: 9781490512679, Pages: 24.
21. Pathak, H., 2013. Industrial Pollution. CreateSpace Independent Publishing Platform, USA., ISBN-13: 978-1492361169, Pages: 26.
22. Pathak, H., 2013. Eutrophication: The Death of a Water body. CreateSpace Independent Publishing Platform, USA., ISBN-13:978-1484171424, Pages: 26..
23. Pathak, H., 2013. Environmental Economics. CreateSpace Independent Publishing Platform, USA., ISBN-13:978-1484171462, Pages: 24.
24. Pathak, H., 2013. Energy Sustainability: Planning, Policy. CreateSpace Independent Publishing Platform, USA., ISBN-13: 978-1492920434, ISBN-10: 1492920436, Pages: 30.
25. Pathak, H., 2013. Energy Audits. CreateSpace Independent Publishing Platform, USA., ISBN-13: 978-1492920359, Pages: 32..
26. Pathak, H., 2013. Assessment of Water Quality by Principal Component Analysis. CreateSpace Independent Publishing Platform, USA., ISBN-10: 1481868837, Pages: 26.
27. Pathak, H., 2013. An environ-economical mathematical modeling of water pollution impact assessment in reference to Indian scenario. Analele Universitătii din Oradea-Seria Geografie, 1: 168-171.
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28. Pathak, H., 2013. Air Pollution. CreateSpace Independent Publishing Platform, USA., ISBN-13: 978-1492390718, Pages: 28.
29. Pathak, H., 2013. A Hand Book of Environmental Protection Act. Createspace Independent Pub, USA., ISBN: 9781489596734, Pages: 26.
30. Pathak, H., 2013. A Hand Book of Energy Conservation and Management. CreateSpace Independent Publishing Platform, USA., ISBN-13: 978-1492920397, Pages: 28.
31. Pathak, H., D. Pathak and S.N. Limaye, 2012. Studies on the physico-chemical status of two water bodies at Sagar city under anthropogenic influences. Adv. Applied Sci. Res. Pelagia Res. Lib., 3: 31-44.
32. Pathak, H., 2012. Water Pollution. Edn., 1, CreateSpace Independent Publishing Platform, USA., ISBN-13:978-1481254366, Pages: 38.
33. Pathak, H., 2012. Multivariate Statistics: An Approach for Water Quality Assessment. Lambert Academic Publication, Germany, ISBN: 978-3-8454-2367-8, Pages: 60.
34. Pathak, H., 2012. Indicators of the deteriorate water quality status of reservoir, Sagar city, MP, India by multivariate analysis. Ovidius Univ. Annals Chem., 23: 155-162.
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35. Pathak, H., 2012. Hand Book of Water Quality Assessment in Reference to Environmental Significance: Water quality. CreateSpace Publishing, USA., ISBN-13: 9781481843195, Pages: 58.
36. Pathak, H., 2012. Evaluation of ground water quality using multiple linear regression and mathematical equation modeling. Analele Universitătii din Oradea, Seria Geografie, 2: 304-307.
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37. Pathak, H., 2012. Assessment of physico-chemical quality of groundwater by multivariate analysis in some populated villages nearby Sagar city, MP, India. J. Environ and Anal. Toxicol., Vol. 2. .
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38. Pathak, H., 2012. A Guide for Environmental Impact Assessment. Lambert Academic Publication, Germany, ISBN: 978-3-8473-2336-5, Pages: 60.
39. Pathak, H. and D. Pathak, 2012. Eutrophication: Impact of excess nutrient status in lake water ecosystem. J. Environ. Anal. Toxicol., Vol. 2. 10.4172/2161-0525.1000148.
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40. Hemant, P. and S.N. Limaye, 2012. Assessment of physico-chemical quality of groundwater in rural area nearby Sagar City, MP, India. Adv. Applied Sci. Res. Pelagia Res. Lib., 3: 555-562.
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41. Pathak, H. and S.N. Limaye, 2011. Study of seasonal variation in groundwater quality of Sagar city (India) by principal component analysis. E-J. Chem., 8: 2000-2009.
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42. Pathak, H. and S.N. Limaye, 2011. Pollumeter: A water quality index model for the assessment of water quality. Green Pages: Directory Environ. Technol., Vol. 2011 .
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43. Pathak, H. and S.N. Limaye, 2011. Interdependencey between physicochemical water pollution indicators: A case study of river Babus, Sagar, M.P., India. Analele UniversităŃii din Oradea-Seria Geografie, 21: 23-29.
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44. Pathak, H. and S.N. Limaye, 2011. A mathematical modeling with respect to DO for environmentally contaminated drinking water sources of Makronia sub-urban area. India: A case study Ovidius Univ. Ann. Chem., 22: 87-93.
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