Yen, Tran Thi Hai, 		Thu Huong, Le, 		Thi Thanh Duyen, Nguyen, AND 		Thi Thu Giang, Vu.
" Preparation and SPF Evaluation of Sunscreen Cream Containing Titanium Dioxide" <em>VNU Journal of Science: Medical and Pharmaceutical Sciences</em> [Online], Volume 35 Number 1 (21 June 2019)