Benjawan Yuenyong. (2023) The Morale and Encouragement of Teachers in the Performance of Extra-large Schools, under the Office of Bangkok Secondary Education Service Area 1. <i>Interdisciplinary Academic and Research Journal</i>, <i>3</i>(1), 339-352.Benjawan Yuenyong. "The Morale and Encouragement of Teachers in the Performance of Extra-large Schools, under the Office of Bangkok Secondary Education Service Area 1". Interdisciplinary Academic and Research Journal 3 (2023):339-352.Benjawan Yuenyong. The Morale and Encouragement of Teachers in the Performance of Extra-large Schools, under the Office of Bangkok Secondary Education Service Area 1. DR.KEN Institute of Academic Development and Promotion.:ม.ป.ท. 2023.