Kinari, Suliwati, Ermi Girsang, Ali Napiah Nasution, and I. Nyoman Ehrich Lister. “Antioxidant and Anti-Collagenase Effectivity of Red Dragon Fruit Peel and Kaempferol 3-0-Rutinoside”. American Scientific Research Journal for Engineering, Technology, and Sciences 59, no. 1 (September 22, 2019): 244–251. Accessed April 21, 2024. https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/5069.