Khethoi, Sitthiporn, Phra Worachat Thasa, and Phramaha Saccarak Raisanguan. “The Affecting Factors of Khamkaen Nakhorn Secondary School Students’ Drop Out : A Case Study Khamkaen Nakhorn Secondary School Affiliated With Secondary School Educational Service Area Office 25, Ministry of Education”. Mahachula Academic Journal 4, no. 2 (August 20, 2018): 92–101. Accessed May 5, 2024. https://so04.tci-thaijo.org/index.php/JMA/article/view/141307.