Garba M. M. , Garba M. M. 2011. “Simulation and Performance Evaluation of a Dual - Operated Solar Cooking and Drying System for Developing Countries: Solar Cooking and Drying System for Developing Countries”. Journal of Energy Policy Research and Development (JEPRD) 1 (1). Nigeria:100-111. https://jeprd.energy.gov.ng/jeprd/index.php/journal/article/view/14.