Thi Ngan, Dang, 		Mai Ngoc, Bui, 		Thi Thanh Huong, Ha, AND 		Thi Hai Yen, Nguyen.
" Preparation of Green Tea Effervescent Tablets" <em>VNU Journal of Science: Medical and Pharmaceutical Sciences</em> [Online], Volume 36 Number 3 (25 September 2020)