SARFRAZ, M.; SULTANA, N.; TARIQ, M. I. HAZARDOUS POLLUTANTS IN POTABLE GROUNDWATER SOURCES OF PUBLIC SCHOOLS, SOUTHERN PUNJAB (PAKISTAN). Revista Internacional de Contaminación Ambiental, [S. l.], v. 35, n. 4, p. 797–805, 2019. DOI: 10.20937/RICA.2019.35.04.02. Disponível em: https://www.revistascca.unam.mx/rica/index.php/rica/article/view/RICA.2019.35.04.02. Acesso em: 8 dic. 2021.