Okon, J. E., Ekanem, A. M., George, N. J., Agbo, E. P., & Okon, F. E. (2026). Long-Term Trends in Solar Radiation and Climatic Variability Across Nigeria: Implications for Renewable Energy Potential. Researchers Journal of Science and Technology, 6(4), 70–88. https://doi.org/10.83080/rejost.vol6no4.300