D. Hidayati, M., & Rahmatulloh, A. (2022). Antioxidant Activity of Uncaria Gambir (Hunter) Roxb Extracts: doi.org/10.26538/tjnpr/v6i8.9. Tropical Journal of Natural Product Research (TJNPR), 6(8), 1215-1218. https://tjnpr.org/index.php/home/article/view/1290