Umoh MD, Udo SO, Udoakah Y-ON. Estimation of Global Solar Radiation on Horizontal Surface from Sunshine Hours and Other Meteorological Parameters for Calabar, Nigeria. 5003 [Internet]. 2013 Nov. 15 [cited 2025 May 15];3(11):1083-9. Available from: https://www.archive.aessweb.com/index.php/5003/article/view/3566