Calvo Salazar, Cindy. “Sustainable Sanitation from a Multi-Layered Approach: The Case of Costa Rica”. Población y Salud en Mesoamérica 16, no. 2 (November 13, 2018). Accessed November 21, 2024. https://revistas.ucr.ac.cr/index.php/psm/article/view/32542.