Elbenghazi, E., K. Agha, and E. Dekam. 2017. “Simulation Of Indirect Solar Crop Dryers Augmented With Pebble-Bed Thrmal Storages”. Solar Energy and Sustainable Development Journal 6 (1). Tripoli,Libya.:1-12. https://jsesd-ojs.csers.ly/ojs/index.php/jsesd/article/view/50.