1. Faculty of Chemical Engineering and Food Technology, Nguyen Tat Thanh University, Ho Chi Minh, Vietnam.
2. Soc Trang Health Department, Soc Trang Province, Vietnam.
3. Dong Thap University, Dong Thap Province, Vietnam.
4. NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam.