Okon, Joel E., Aniekan M. Ekanem, Nyakno J. George, Emmanuel P. Agbo, and Francis E. Okon. “Long-Term Trends in Solar Radiation and Climatic Variability Across Nigeria: Implications for Renewable Energy Potential”. Researchers Journal of Science and Technology 6, no. 4 (June 25, 2026): 70–88. Accessed June 26, 2026. https://rejost.com.ng/index.php/home/article/view/300.