YADAV, Brijesh Kumar; GROVER, Jagdish. Appraisal of Groundwater Nitrate Accumulation in Faridkot and Firozpur District of South-Western Punjab. Journal of Soil Salinity and Water Quality, India, v. 15, n. 2, p. 158–163, 2023. Disponível em: https://epubs.icar.org.in/index.php/JoSSWQ/article/view/139740. Acesso em: 25 oct. 2025.