Tulyavilaikul, W., & Tuntivivat, S. (2022). Psychosocial Factors Related to Teacher’s Roles in Promoting Non-violent Behavior of Students in Bangkok Metropolitan Area. The Periodical of Behavioral Science, 28(2), 97–115. retrieved from https://so06.tci-thaijo.org/index.php/BSRI/article/view/256730