Elbenghazi, E., K. . Agha, and E. . Dekam. “Simulation Of Indirect Solar Crop Dryers Augmented With Pebble-Bed Thrmal Storages”. Solar Energy and Sustainable Development Journal, vol. 6, no. 1, June 2017, pp. 1-12, https://jsesd-ojs.csers.ly/ojs/index.php/jsesd/article/view/50.