Ramos Leal, J. A., L. E. Barrón Romero, y I. Sandoval Montes. 2004. «Combined Use of Aquifer Contamination Risk Maps and Contamination Indexes in the Design of Water Quality Monitoring Networks in Mexico». Geofísica Internacional 43 (4):641-50. https://doi.org/10.22201/igeof.00167169p.2004.43.4.847.