Thi Bich Hanh, Le, 		Chat, Phung, 		Tu Uyen, Pham Thi, AND 		Thi Hong Nga, Nguyen.
" Validation of a Simultaneous Determination Procedure  for Alpha Arbutin and Nicotinamide in Cosmetic Serum Using High-Performance Liquid Chromatography  with a Photodiode Array Detector" <em>VNU Journal of Science: Medical and Pharmaceutical Sciences</em> [Online], (23 September 2026)