Intachan, Paradee, and Wipapen Chokdeesumrit. 2020. “Comparison of the effectiveness of topical 5% Centella Asiatica gel versus topical 1% clindamycin gel in the treatment of acne vulgaris”. Journal of Medicine and Health Sciences 27 (1):1-11. https://he01.tci-thaijo.org/index.php/jmhs/article/view/241798.