Roceratanapaitip, N., D. Thapinta, and V. Kitsumban. “Effect of the Positive Self-Talk Training Program on Depressive Symptoms Among Readmitted Patients With Major Depressive Disorder”. Journal of Phrapokklao Nursing College, Chanthaburi, vol. 33, no. 1, June 2022, pp. 14–24, https://he01.tci-thaijo.org/index.php/pnc/article/view/255173.