Kassem, Youssef, Huseyin Camur, Mustapha Tanimu Adamu, Takudzwa Chikowero, and Terry Apreala. “Prediction of Solar Irradiation in Africa Using Linear-Nonlinear Hybrid Models”. Engineering, Technology & Applied Science Research 13, no. 4 (August 9, 2023): 11472–11483. Accessed April 7, 2025. https://mail.etasr.com/index.php/ETASR/article/view/6131.