Awwalu, S, Usman, M.A, & Muaz, M. (2018). QUALITY CONTROL STUDIES OF SIX HERBAL PRODUCTS MARKETED WITHIN ZARIA METROPOLIS. BIMA JOURNAL OF SCIENCE AND TECHNOLOGY (2536-6041), 2(02), 160-166. https://doi.org/10.56892/bima.v2i02.100