Tran Thi Anh Thoa (1)(2), Bui Trang Viet (1), Do Thuong Kiet(1). SURVEY OF FACTORS (SODIUM CHLORIDE, ACID ACETIC, SHADOW, CUTTING) AFFECT TO THE SPREADING OF WATER HYACINTH EICHHORNIA CRASSIPES (MART.) SOLMS. iisj 2021, 5, Page:1-13.