An Investigation on Indigenous Material as a Filter Medium for Decontamination of Greywater. Pakistan Journal of Analytical & Environmental Chemistry, Pakistan, v. 17, n. 1, p. 87 – 92, 2016. DOI: 10.21743/pjaec/2016.06.013. Disponível em: https://pjaec.pk/index.php/pjaec/article/view/249. Acesso em: 12 jul. 2025.