OGLI, R. Y. N. Analysis of Groundwater Softening Methods. Journal of Higher Education and Academic Advancement, [S. l.], v. 1, n. 1, p. 198–207, 2024. DOI: 10.61796/ejheaa.v1i1.355. Disponível em: https://journal.antispublisher.id/index.php/EJHEAA/article/view/355. Acesso em: 19 nov. 2025.