Extent of Saltwater Intrusion and the Freshwater Exploitability in the Coastal Vietnamese Mekong Delta. A Case Study in Ham Luong estuaryPham Thi Bich Thuc, Anh Dao Do, Nguyen Tan Trung, Dang Nguyen Nha Khanh and Nguyen Trung NamE3S Web Conf., 626 (2025) 01004DOI: https://doi.org/10.1051/e3sconf/202562601004