หลวงราช เ. Factors Affecting to Self-Discipline of Students of Opportunity Expansion School in Phra Nakhon Si Ayutthaya. Education MCU [Internet]. 2018 Sep. 5 [cited 2024 Apr. 28];4(3):87-96. Available from: https://so02.tci-thaijo.org/index.php/EDMCU/article/view/144134