“The Pilot Plan For Recyclable Solid Waste Management Of Simon Bolivar Neighborhood Within Echeandia”. Revista Científica Ciencias Naturales y Ambientales 9, no. 2 (December 31, 2015): 6. Accessed April 21, 2026. https://revistas.ug.edu.ec/index.php/cna/article/view/1801.