Echeweozo, E. O., G. M. Onwunyiriuwa, and P. A. Nwigwe. “Measurement of Activity Concentration of 40K, 226Ra and 232Th in Commercial Wall Paints Used in Nigeria and Inherent Radiological Hazards”. Journal of Sustainability and Environmental Management 1, no. 2 (May 26, 2022): 224–232. Accessed December 26, 2024. https://nepjol.info./index.php/josem/article/view/45368.