KHENGSAMUT, C.; CHULAKADABBA, S.; KOWASINT, C. The enrichment of positive thinking in adolescents. วารสารสุขภาพจิตแห่งประเทศไทย, Bangkok, Thailand, v. 17, n. 1, p. 12–20, 2012. Disponível em: https://he01.tci-thaijo.org/index.php/jmht/article/view/1261. Acesso em: 16 ก.ย. 2026.