Mohammed, A.A., et al. “Assessment of Heavy Metal Contamination in Vended Road-SideSnacks Using Ilorin As a Case Study”. Al-Hikmah Journal of Pure and Applied Sciences (AJPAS) , vol. 3, no. 1, June 2016, pp. 51-56, https://alhikmahuniversity.edu.ng/AJPAS/index.php/journal/article/view/155.