A. Isola G, S. Ayanlola P, I. Ayantunji O, P. Bayode O. Comparative Study on the Contribution of Asbestos and Gypsum Building Materials to Environmental Radioactivity and Its Radiological Implications. IJSBAR. 2021;56(2):263-271. Accessed September 18, 2025. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/12379