Sangkum, O., V. Dechosilpa, and Y. . Kuphasuk. “The Effect of Locally Delivered Andrographis Paniculata Gel As an Adjunct Therapy for Periodontitis in Well-Controlled Type 2 Diabetes Mellitus Patients”. Mahidol Dental Journal, vol. 42, no. 3, Dec. 2022, pp. 199-08, https://he02.tci-thaijo.org/index.php/mdentjournal/article/view/258664.