Thi Ha, Do, 		Thanh Hai, Nguyen, 		Thi Van Anh, Tran, 		Thanh Hoa, Ha, AND 		Thi Minh Hue, Pham.
" Formulation of Sustained-Release Matrix Tablet of  Rotundin Sulfat" <em>VNU Journal of Science: Medical and Pharmaceutical Sciences</em> [Online], Volume 35 Number 1 (21 June 2019)