Nirun Loungaram. (2023) The Development of a School Management Model "HTS STEP MODEL" to Become a Quality School at Ban Huai La School, Ban Hong District, Lamphun Province. <i>Journal of Humanities and Social Sciences Mahasarakham University</i>, <i>42</i>(3), no. 393-409.Nirun Loungaram. "The Development of a School Management Model "HTS STEP MODEL" to Become a Quality School at Ban Huai La School, Ban Hong District, Lamphun Province". Journal of Humanities and Social Sciences Mahasarakham University 42 (2023):no. 393-409.Nirun Loungaram. The Development of a School Management Model "HTS STEP MODEL" to Become a Quality School at Ban Huai La School, Ban Hong District, Lamphun Province. Mahasarakham University:ม.ป.ท. 2023.