Feka, D.P., J.Z. Jekada, J.D. Galadima, A.A. Mairiga, P.H. Bukar, A. Ebere, J. S. Dadah, S. D. Adia, and M.Y. Bammai. “HEAVY METALS EVALUATION AND HUMAN HEALTH RISK ASSESSMENT OF FOUR BRANDS OF NIGERIAN PORTLAND CEMENT SOLD IN ZARIA, NIGERIA ”. Journal of Chemical Society of Nigeria 46, no. 3 (June 23, 2021). Accessed September 26, 2025. http://www.journals.chemsociety.org.ng/index.php/jcsn/article/view/622.