1:   Adam, N.O., A.M. Alawad, K.A. Enan, M.O. Mustafa and H.M. Ibrahim, 2016. Screening and Molecular characterization of Staphylokinase producing Staphylococcus spp isolated from Bovine milk. IJAPBC, 5: 386-395.
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2:   Ahmed, A.A. and H.M. Ibrahim, 2011. A potential new isolate for the production of a thermostable extracellular α-amylase. J. Bacteriol. Res., 3: 129-137.
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3:   Ahmed, A.A., H.B. Elamin and H.M. Ibrahim, 2014. Characterization of α-amylase produced by different bacillus spp. Gezira J. Eng. Applied Sci., 9: 16-33.
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4:   Ahmed, M.A.E., B.M. Babiker, A.M. Alawad and H.M. Ibrahim, 2016. Isolation and Characterization of Thermophilic Streptomyces Sp.with potential production of actinokinase. Int. J. Adv. Res., 4: 869-878.

5:   Alfadil, M.A., M. Abdallah and H.M. Ibrahim, 2014. Isolation and screening of Streptomyces from local area in Sudan in the presence of amphotericin A and B. Am. J. Sci. Technol., 1: 288-292.
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6:   Alkando, A.A., H.B. Elamin and H.M. Ibrahim, 2013. Extraction of a thermostable extracellular α- amylase from bacillus licheniformis isolated from soil in Sudan. Sudan Acad. Sci. J., 4: 17-38.

7:   Alnour, M.I., K.I. Bashir, O. Elyas, E.E. Elkhidir and H.M. Ibrahim, 2015. Optimization of some culture conditions to enhance α-amylase production using response surface methodology. Int. J. Curr. Microbiol. App. Sci., 4: 157-165.
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8:   Amna, E.M., H.M. Ibrahim and S. Jasni, 2017. Observation of apoptosis in calves experimentally infected with Pasteurella multocida SErotype B:2. Int. J. Curr. Res. Med. Sci., 3: 61-70.
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9:   Amna, E.M., H.M. Ibrhim and S. Jasni, 2017. Ultrastructural pathology associated with attachment of Pasteurella multocida serotype B: 2 to tracheal and pulmonary endothelial cells and tracheal cilia of mice. Int. J. Curr. Res. Biol. Med., 2: 16-24.

10:   Awla, S.A., Z.R. Hassan, F.M. El-Shaikh, H.H. El-Kamali and H.M. Ibrahim, 2014. Antimicrobial activity of new isolate extract against bacterial food contaminant and pathogen. Microbiol. J., 4: 1-11.

11:   Babiker, B.M., M.A.E. Ahmed and H.M. Ibrahim, 2016. Isolation &identification of catalase producing Bacillus spp: A comparative study. Int. J. Adv. Res., 4 : 1206-1211.

12:   Basheer, N., A. Modawi, H.B. Elamin and H.M. Ibrahim, 2015. A potential new isolate for streptokinase production. Int. J. Curr. Microbiol. App. Sci., 4: 380-387.
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13:   Eldeen, K.I., H.M. Ibrahim, E.E. Elkhidir and H.B. Elamin, 2015. Optimization of culture conditions to enhance nattokinase production using RSM. Am. J. Microbiol. Res., 3: 165-170.
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14:   Elkhidir, M., H.M. Ibrahim, M.O.M. Nour, A.O. Sharief and R.E. Osman, 2016. Studies on antimicrobial activity and synergistic effect of Jatropha curcas L. and moringa oliefera LAM. J. Int. Res. Med. Pharm. Sci., 7: 19-27.

15:   Hamadan, W.A.A.R., A.M. Alawad, E.E. Elkhidir and H.M. Ibrahim, 2016. Enhancing media compositions for nattokinase production: an approach of response surface methodology. Int. J. adv. Res., 4: 1536-1546.

16:   Hassan, Z.R., H.M. Ibrahim, F.M. Elsheikh and N.A. Elawad, 2017. Isolation and molecular characterization of bacterial sinusitis isolated from sudanese patients. Int. J. Adv. Pharm. Biol. Chem., 6: 109-116.

17:   Ibrahim, H.M. and E.E. Elkhidir, 2011. Response surface method as an efficient tool for medium optimisation. Trends Applied Sci. Res., 6: 121-129.
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18:   Ibrahim, H.M. and M.A.E. Ahmed, 2017. A potential new isolate for actinokinase production. EC Microbiol., 10: 179-185.
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19:   Ibrahim, H.M., K.I. Bashir, E.E. Elkhidir, M.I. Alnour and O. Elyas, 2015. Tatistical optimization of culture conditions for nattokinase production by batch fermentation. Int. J. Curr. Microbiol. App. Sci., 4: 143-153.

20:   Ibrahim, H.M., S.M.S.M. Salih, R. Eltaeeb and E.E. Elkhidir, 2018. Extraction and optimization of l- asparaginase produced by local isolates of E.coli. Am. J. Sci. Technol., 5: 5-11.

21:   Ibrahim, H.M., W.M.W. Yusoff, A.A. Hamid and O. Omar, 2010. Enhancement of cyclodextrin glucanotransferase production by Bacillus G1 using different fermentation modes. Biotechnology, 9: 506-512.
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22:   Ibrahim, H.M., W.M.W. Yusoff, A.A. Hamid and O. Omer, 2004. Batch and continuous fermentation of glucanotransferase production by a local Bacillus G1. Proceedings of the 7th National Symposium of Biology, May 18-20, 2004, UKM., Awan Golf and Country Resort, Genting Highlands, Malaysia, pp: 105-109.

23:   Ibrahim, H.M., W.M.W. Yusoff, A.A. Hamid, R.M. Illias and O. Omer, 2003. Optimization of the process conditions for cyclodextrin glucanotransferase production using response surface methodology. Asian J. Microbiol., Biotechnol. Environ. Sci., 5: 297-300.
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24:   Ibrahim, H.M., W.M.W. Yusoff, A.A. Hamid, R.M. Illias, O. Hassan and O. Omar, 2005. Optimization of medium for the production of β-cyclodextrin glucanotransferase using Central Composite Design (CCD). Process Biochem., 40: 753-758.
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25:   Obeid, A.E.F.E., A.M. Alawad and H.M. Ibrahim, 2015. Isolation and characterization of Bacillus subtillus with potential production of nattokinase. Int. J. Adv. Res., 3: 94-101.
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26:   Oboody, F.A.H., H.B. Elamin and H.M. Ibrahim, 2016. Evaluation of biogas productivity from the mixtures of vinasse, wastewater and filter mud. Int. J. Curr. Microbiol. App. Sci., 5: 117 -126.
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27:   Yusoff, W.M.W., H.M. Ibrahim, A.A. Hamid, R.M.I.O. Hassan and O. Omer, 2001. A new isolate for β-cyclodextrin glucanotransferase productio. Proceedings of 26th Annual Conference of Malaysian Society for Biochemistry and Molecular Biology, October 2-4, 2001, Crown Princess Hotel, Kuala Lumpur, Malaysia, pp: 57-57.

28:   Yusoff, W.M.W., H.M. Ibrahim, A.A. Hamid, R.M.I.O. Hassan and O. Omer, 2002. A potential new isolate for β-cyclodextrin glucanotransferase production. Malaysian J. Biochem. Mol. Biol., 7: 13-17.