Anggraini, Tuty, Neswati, and Alfi Asben. “Mangampo: A Traditional Method from West Sumatra to Extract Gambir from Uncaria Gambir”. Pakistan Journal of Nutrition 18, no. 2 (January 15, 2019): 146–152. Accessed August 30, 2025. https://pjnonline.org/pjn/article/view/2683.