A. Mamman, U. Ibrahim, M. M. Idris, A. A. Mundi, and M. U. Sarki, “Solar radiation modelling and measurement techniques in Lafia Zone, Nasarawa state, Nigeria”, EJSMT, vol. 7, no. 1, pp. 48–55, Jun. 2020, doi: 10.37134/ejsmt.vol7.1.6.2020.