ogli, Rakhmatilllayev Yosunbek Ne’matilla. “Analysis of Groundwater Softening Methods”. Journal of Higher Education and Academic Advancement 1, no. 1 (January 13, 2024): 198–207. Accessed November 19, 2025. https://journal.antispublisher.id/index.php/EJHEAA/article/view/355.