Thu Trang, C. T.; Tran Dinh, L.; Do Thi, T. H.; Tran Manh, H.; Nguyen Thi, T. H.; Pham Thi, K.; Nguyen Van, B.; Le Van, N.; Dinh Hai, N. Environmental Quality Assessment of Sandy Beaches in Ha Long - Cat Ba Area (Vietnam). VJMST 2022, 22, 67-78.