Lawal, Aminu T., Aminu Musa, and Musa A. Usman. “TLC and IR Detection of Sildenafil As an Undeclared Adulterant in Some Herbal Aphrodisiac Products Marketed in Northwest Nigeria”. West African Journal of Pharmacy 31, no. 1 (December 17, 2023): 119 – 128. Accessed November 21, 2024. https://wapcpjournal.org.ng/index.php/home/article/view/211.