Le TMP, Le TMH, Vu LA. Using GIS to Manage Clean Water Supply System: A Case Study of Hoan Kiem District, Hanoi, Vietnam. ijscet. 2024;15(3):133-142. Accessed March 11, 2026. https://penerbit.uthm.edu.my/ojs/index.php/IJSCET/article/view/19753