T. . Chamroon, P. . Sanchai, W. . Khuanpet, S. . Seekumnurd, S. . Keawkhamfu, and P. Wonngnuch, “Prevalence and Factors Associated with Depression among Elderly in San Ton Kok Village, Chiang Rai, Thailand”, j health sci altern med, vol. 2, no. 1, pp. 19–24, Apr. 2020.