Quang Trung, Tran, 		Thi Dao, Nguyen, 		Thanh Hai, Nguyen, AND 		Van Lau, Trinh.
" Preparation of Nifedipine Push-Pull Osmotic Pump Tablets" <em>VNU Journal of Science: Medical and Pharmaceutical Sciences</em> [Online], Volume 36 Number 4 (18 December 2020)