E. . Tanur, I. N. E. Lister, E. . Fachrial, and E. Girsang, “Ferric Reducing Antioxidant Power (FRAP) and Inhibition of Collagenase Enzyme Activity from Ethanol Extract of Pineapple (Ananas cosmus (L.) Merr) Core”, ASRJETS-Journal, vol. 70, no. 1, pp. 99–105, Jun. 2020, Accessed: Oct. 28, 2025. [Online]. Available: https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/5715