Mballa, Louis Valentin, and Fernando Hernandez-Espericueta. 2018. “Public Policies for Drinking Water Supply and Sanitation in Escalerillas, San Luis Potosí - Mexico: Scenarios and Citizen Perception”. Agua Y Territorio / Water and Landscape, no. 11 (April):137-52. https://doi.org/10.17561/at.11.3378.