Jayani NIE, Salawane BL, Pelopolin HY, Rani KC. Formulation and Evaluation of Two Types of Functional Beverage Granules Made of Extracts of Guava Leaves, Purple Sweet Potato and Cinnamon: doi.org/10.26538/tjnpr/v5i6.7. TJNPR. 2021;5(6):1024-1029. Accessed July 1, 2025. http://mail.tjnpr.org/index.php/home/article/view/565