Bashir, A., Ado, A., and Alli, A. I. “Determination of Antibacterial Activity of Psidium Guajava Leaf Extract Against Bacteria Isolated from Mobile Phones of Umaru Musa Yar’adua University, Katsina Community”. UMYU Journal of Microbiology Research (UJMR) 6, no. 1 (June 30, 2021): 219–226. Accessed July 16, 2024. https://ujmr.umyu.edu.ng/index.php/ujmr/article/view/126.