Comparative Study on the Hardness of Mechroha Water Springs. Journal of Engineering, [S. l.], v. 28, n. 11, p. 47–55, 2022. DOI: 10.31026/j.eng.2022.11.04. Disponível em: https://joe.uobaghdad.edu.iq/index.php/main/article/view/1614.. Acesso em: 8 may. 2024.