SITI SYAZLIANA MD SAAD, & Nor Faizah Razali. (2026). Formulation of Ginger (Zingiber Officinale)-Based Energy Drink Using Tea-Derived Caffeine: A Comparative Energy Analysis. Progress in Engineering Application and Technology, 7(1), 727-732. https://publisher.uthm.edu.my/periodicals/index.php/peat/article/view/22646