Sarfraz, Muhammad, Nargis Sultana, y Muhammad Ilyas Tariq. 2019. «HAZARDOUS POLLUTANTS IN POTABLE GROUNDWATER SOURCES OF PUBLIC SCHOOLS, SOUTHERN PUNJAB (PAKISTAN)». Revista Internacional De Contaminación Ambiental 35 (4):797-805. https://doi.org/10.20937/RICA.2019.35.04.02.