Cárdenas, Pedro, Tonny Dextre, Vicky García, and Liliana Santivañez. “Escuelas Limpias: Proyecto De gestión Ambiental”. Journal of Economics, Finance and Administrative Science 13, no. 25 (December 30, 2008): 131–150. Accessed May 19, 2024. https://revistas.esan.edu.pe/index.php/jefas/article/view/302.