A. Sirisombut, S. Kusuma Na Ayuthya, W. Puwarawuttipanit, and S. Jirajariyavej, “The Effect of a Group-Based Diabetic Self-Management Program on Hemoglobin A1C among People with Type 2 Diabetes”, ์Nurs Sci J Thail, vol. 34, no. 2, pp. 118–128, Jun. 2016.