Kasetchai Laeheem และ Utit Sangkharat. (2014) Predicting Factors for Bullying Behavior of lslamic Private Schools Students' in Songkhla Province. <i>NIDA Development Journal</i>, <i>54</i>(1), 227-258.Kasetchai Laeheem และ Utit Sangkharat. "Predicting Factors for Bullying Behavior of lslamic Private Schools Students' in Songkhla Province". NIDA Development Journal 54 (2014):227-258.Kasetchai Laeheem และ Utit Sangkharat. Predicting Factors for Bullying Behavior of lslamic Private Schools Students' in Songkhla Province. National Institute of Development Administration:ม.ป.ท. 2014.