Adeyemi, B., and Ogodo S. O. “Refractivity Gradient Variations and Intertropical Discontinuities Across Nigeria”. International Astronomy and Astrophysics Research Journal 6, no. 1 (May 24, 2024): 5–17. Accessed October 4, 2026. https://journaliaarj.com/index.php/IAARJ/article/view/99.