พาสนาโสภณ ภโวทัย. “Active Ingradients in Herbs”. Journal of Phrapokklao Nursing College, Chanthaburi 27, no. 1 (March 30, 2018): 120–131. Accessed April 20, 2024. https://he01.tci-thaijo.org/index.php/pnc/article/view/117232.