Reyes Aguilera, Edwin Antonio. “Educational Prototype of a Water Pumping System With Solar Photovoltaic Energy”. Revista Científica de la FAREM-Estelí 3, no. 12 (March 3, 2016): 69–78. Accessed May 19, 2024. https://www.camjol.info/index.php/FAREM/article/view/2462.