Collins O Molua, Kenneth Eseka, and Anthony O Ukpene. “Investigating Background Ionizing Radiation in Some Selected Locations in Agbor Metropolis”. Journal of Energy Engineering and Thermodynamics 2, no. 04 (July 6, 2022): 16–23. Accessed July 4, 2025. https://hmjournals.com/journal/index.php/JEET/article/view/976.