Ubani, Samuel Chibuike, Okwume Chidera Gloria, Victor Eshu Okpashi, Omeje Kingsley Omeje, Osuji Akudo Chigodiri, and Onwurah Ikechukwu NE. 2019. “Effect of Pharmaceutical Effluent on Soil Phosphatase, Dehydrogenase and Urease Activities: Linking Ecotoxicity to Soil Infertility”. Journal of Research in Biology 9 (1), 2636-43. https://ojs.jresearchbiology.com/ojs1/index.php/jrb/article/view/489.