AHMAD, J.; UMAR, M.; KARIM, S.; AMADUDDIN, M.; AKHTAR, K.; SHAH, F. Effect of coagulation flocculation and sand & gravel filtration on the quality of car wash waste water. Journal of the Pakistan Institute of Chemical Engineers, [S. l.], v. 45, n. 2, 2018. Disponível em: http://piche.org.pk/journal/index.php/jpiche/article/view/370. Acesso em: 20 apr. 2024.