Mohammed Bashir, Sulaiman Mustapha, and Umar A. Tawfiq. “Microbiological Quality Evaluation of Typhoid and Diarrheal Herbal Formulations Sold in Yola and Environs”. UMYU Journal of Microbiology Research (UJMR), vol. 2, no. 2, Dec. 2017, pp. 94-98, doi:10.47430/ujmr.1722.014.