Bhagavasopit, J., and S. Khrukham. “A Study of bullying among students in a high school in Pathum Thani Province”. Journal for Developing the Social and Community, vol. 12, no. 2, Aug. 2025, pp. 619-44, https://so03.tci-thaijo.org/index.php/rdirmu/article/view/292221.