Teanchai, C., S. Thenchai, S. Tippayakorn, and P. Dararat. “Comparative analysis of mangosteen peel extract and vitamin E treatment on human gingival fibroblasts”. Mahidol Dental Journal, vol. 44, no. 2, Aug. 2024, pp. 67-78, https://he02.tci-thaijo.org/index.php/mdentjournal/article/view/269262.