Design Comparison between the Gravity and Pressure Sand Filters for Water Treatment, Review. Journal of Engineering, [S. l.], v. 29, n. 05, p. 49–62, 2023. DOI: 10.31026/j.eng.2023.05.04. Disponível em: https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/1711. Acesso em: 25 apr. 2025.