และหีม เ. The Effect of Group Study Activities on the Prevention Risky Behavior to Students’ Bullying in an Islamic Private School, Yala Province. parichartj [Internet]. 2018 Apr. 16 [cited 2024 May 3];31(1):183-200. Available from: https://so05.tci-thaijo.org/index.php/parichartjournal/article/view/118914