1. Usman, H., F.I. Abdulrahman, A.H. Kaita and I.Z. Khan, 2011. Proximate and Elemental Composition of Bauhinia rufescens Lam (Leguminosae : Caesalpinioidaea). Int. J. Biol. Chem. Sci., 5: 1746-1753.
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2. Musa, Y.M., M.I. Sule, U.U. Pateh, M. Ilyas, A.M. Musa, H. Usman and M.S. Abdullahi, 2010. Preliminary Phytochemical and antimicrobial studies of the methanol extract of aerial parts of Ampelocissus grntii (Baker) PLANCH. Int. J. Chem. Sci., 3: 167-173.
3. Yaro, A.H., J.A. Anuka, O.A. Salawu, I.M. Hussaini, H. Usman and A.M. Musa, 2009. Comparative neuropharmacological activities methanolic extracts of leaves and roots of Cissus cornifolia in mice. Afr. J. Biomed. Res., 12: 219-223.
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4. Usman, H., F.I. Abdulrahman, H.A. Kaita and I.Z. Khan, 2009. Antibacterial assays of the solvents partitioned portions of methanol stem bark extract of Bauhinia rufescens Lam (Leguminosae-Caesalpinioideae). Pacif. J. Sci. Tech., 10: 857-867.
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5. Usman, H., F.I. Abdulrahman and A. Usman, 2009. Qualitative phytochemical screening and in vitro antimicrobial effects of methanol stem bark extract of Ficus thonningii (Moraceae). Afr. J. Trad. Complement. Altern. Med., 6: 289-295.
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6. Reuben, K.D., F.I. Abdulrahaman, H. Usman, S.Y. Timothy and C.H. Wazis et al., 2009. Preliminary Phytochemical Screening and In Vitro Antimicrobial Investigation of the Stem Bark Petroleum Ether Extract of Croton zambesicus Muell Arg. Sahel J. Vet. Sci., 8: 29-34.
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7. Geidam, Y.A., H. Usman, H.I. Musa, F. Anosike and Y. Adeyemi, 2009. Oxytetracycline and procaine penicillin residues in tissues of slaughtered cattle in Maiduguri, Borno State Nigeria. Terr. Aquat. Environ. Toxicol., 3: 68-70.
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8. Usman, H., A.H. Yaro and M.M. Garba, 2008. Phytochemical and anticonvulsant screening of the ethanolic flower extracts of Newbouldia laevis (Bignoniaceae) in mice. J. Pharmacol. Toxicol., 3: 127-133.
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9. Usman, H., A.H. Yaro and M.M. Garba, 2008. Analgesic and anti-inflammatory screening of Newbouldia laevis flower in rodents. Trends Med. Res., 3: 10-15.
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10. Reuben, K.D., F.I. Abdulrahman, J.C. Akan, H. Usman, O.A. Sodipo and G.O. Egwu, 2008. Phytochemical screening and in vitro antimicrobial investigation of the methannolic extract of Croton zambesicus Muell ARG. stem bark. Eur. J. Sci. Res., 23: 134-140.
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11. Musa, Y.M., A.K. Haruna, M. Ilyas, A.H. Yaro, A.A. Ahmadu and H. Usman, 2008. Phytochemical, analgesic and anti-inflammatory effects of the ethylacetate extract of the leaves of Pseudocedrella kotschyii. Afr. J. Trad. Complement Altern. Med., 5: 92-96.
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12. Musa, A.M., A.H. Yaro, H. Usman, M.G. Magaji and M. Habu, 2008. Phytochemical and some neuropharmacological studies on the methanolic leaf extracts of Cissus cornifolia [Vitaceae] in mice. Int. J. Pharmacol., 4: 145-148.
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13. Usman, H., Y.M. Musa, A.A. Ahmadu and M.A. Tijjani, 2007. Phytochemical and antimicrobial effects of Chrozophora senegalensis. Afr. J. Trad. Complementary Alternat. Med., 4: 488-494.
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14. Usman, H., F.I. Abdulrahman and A.A. Ladan, 2007. Phytochemical and antimicrobial evaluation of Tribulus terrestris L. (Zygophyllaceae) growing in Nigeria. Res. Biol. Sci., 2: 244-247.
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15. Usman, H. and J.C. Osuji, 2007. Phytochemical and in vitro antimicrobial assay of the leaf extract of Newbouldia laevis. Afr. J. Tradit. Compliment. Altern. Med., 4: 476-480.
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16. Musa, Y.M., A.K. Haruna, M. Ilyas, A.H. Yaro, A.A. Ahmadu and H. Usman, 2007. Analgesic and anti-inflammatory effects of the leaf extracts of Pseudocedrella kotschyii Harms (Meliaceae). J. Pharmacol. Toxicol., 2: 542-550.
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17. Geidam, Y.A., H. Usman, M.B. Abubakar and B. Ibrahim, 2007. Effects of aqueous leaf extracts of Psidium guajava on bacteria isolated from the navel of day-old chicks. Res. J. Microbiol., 2: 960-965.
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18. Usman, H., A.K. Haruna, M. Ilyas, A.H. Yaro, A.A. Ahmadu and Y.M. Musa, 2005. Anti-nociceptive and anti-inflammatory effects of the leaves extracts of Celtis integrifolia Lam. (Ulmaceae). Res. J. Sci., 11: 101-112.