Punsuwun, Sasinun, Khwanjit Mahakittikun, Pitphan Uthchachon, and Uncharee Kanathum. “Effects of Positive Self-Talk Training Program on Self-Esteem and Psychological Well-Being Among Pregnant Adolescents”. Journal of Research in Nursing-Midwifery and Health Sciences 37, no. 2 (June 30, 2017): 77–89. Accessed May 4, 2024. https://he02.tci-thaijo.org/index.php/nur-psu/article/view/91405.