หาญพัฒนชัยกูร ก. ., จิรัฐิเกรียงไกร ช., and เกษรสุวรรณ์ จ. . “Factors Influencing Bullying Perpetration Among Lower Secondary School Students in Pathum Thani Province”. Journal of Health Science of Thailand, vol. 35, no. 2, Apr. 2026, pp. 224-33, https://thaidj.org/index.php/JHS/article/view/17286.