Yodsawad, T., T. Doungwichitrkul, T. Meemongkolkiat, C. Chanchao, T. Damsud, and P. Phuwapraisirisan. “First report of piperidone extracts as tyrosinase and α-glucosidase inhibitors from fruits of Piper retrofractum”. Agriculture and Natural Resources, vol. 58, no. 4, Aug. 2024, https://li01.tci-thaijo.org/index.php/anres/article/view/264693.