González-Ramírez, Esteban Alberto. “GEOGRAPHICAL DISTRIBUTION OF THE AVAILABILITY AND INVESTMENT IN INFRASTRUCTURE SYSTEMS WATER AND SANITATION IN COSTA RICA”. Geographical Journal of Central America, vol. 2, no. 49, Apr. 2013, pp. 103-32, https://www.revistas.una.ac.cr/index.php/geografica/article/view/5010.