Preecha Poosombatkajhon และ Supaporn Pongpinyo-o-pas;Prapart Katethai;Chot Bodeerat. (2022) Management Strategies to Reduce Dropout Students in Institute of Vocational Education Northern Region 3. <i>Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University</i>, <i>16</i>(1), 268-282.Preecha Poosombatkajhon และ Supaporn Pongpinyo-o-pas;Prapart Katethai;Chot Bodeerat. "Management Strategies to Reduce Dropout Students in Institute of Vocational Education Northern Region 3". Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University 16 (2022):268-282.Preecha Poosombatkajhon และ Supaporn Pongpinyo-o-pas;Prapart Katethai;Chot Bodeerat. Management Strategies to Reduce Dropout Students in Institute of Vocational Education Northern Region 3. Pibulsongkram Rajabhat University:ม.ป.ท. 2022.