Nguyen Thuy Ngoc, Truong Thi Kim, Pham Do Quynh Anh, Nguyen Dinh Phuc Hung, Phung Thi Vi and Duong Hong Anh 2024. Evaluation of caffeine levels in some popular drinks originated from tea, coffee, and energy drinks on the Vietnam market. Version B of Vietnam Journal of Science and Technology. 66, 10DB-HH (Oct. 2024). DOI:https://doi.org/10.31276/VJST.66(10DB-HH).70-75.