Daorueang, D. 2022. The Protective Effect of Sa-khan (Piper, Piperaceae) Against High Glucose-Induced Cytotoxicity in Human Proximal Tubular Epithelial Cells: http://www.doi.org/10.26538/tjnpr/v6i12.9. Tropical Journal of Natural Product Research (TJNPR). 6, 12 (Dec. 2022), 1953–1956.