ศรีรัตนบัลล์ จ, ตันพิชัย ป, สุปัญโญ ว. The outcomes of Problem - Solving Skills for Bullying in the Upper Primary school Students. JLA [Internet]. 2017 Jul. 17 [cited 2024 May 3];8(2):161-87. Available from: https://so03.tci-thaijo.org/index.php/journal-la/article/view/93417