Asere, A. M., T. O. Owolabi, B. D. B. D. Alafe, O. P. Alabi, and M. B. Alimi. “Assessment of Excess Gamma Dose Exposure Level in Typical Nigeria Commercial Building Materials Distribution Outlets”. Journal of the Nigerian Society of Physical Sciences 3, no. 3 (August 29, 2021): 216–223. Accessed October 3, 2022. https://journal.nsps.org.ng/index.php/jnsps/article/view/188.