Jayani, N. I. E.; Salawane, B. L.; Pelopolin, H. Y.; Rani, K. C. 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, 1024-1029.