J. A., Akinpelu, and Obioh I. B. “Validation of Global Solar Radiation (GSR) Data Using Artificial Neural Networks (ANN) for Estimation of GSR in Nigeria for Solar Energy Applications”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 36, no. 8 (December 6, 2017): 303–312. Accessed September 17, 2025. https://gssrr.org/JournalOfBasicAndApplied/article/view/7130.