Assessment of Water Quality and Heavy Metals Contamination of River Ravi in Pakistan. Pakistan Journal of Analytical & Environmental Chemistry, Pakistan, v. 19, n. 2, p. 169 – 180, 2018. DOI: 10.21743/pjaec/2018.12.19. Disponível em: http://pjaec.pk/index.php/pjaec/article/view/190. Acesso em: 13 jul. 2025.