Koolapat, N. and Jongkonklang, S. (2022) “Competency-Based Instruction for Learning Achievement and Critical Thinking Skill Development for Grade 10 Students”, Ratchaphruek Journal, 20(1), pp. 59–70. available at: https://so05.tci-thaijo.org/index.php/Ratchaphruekjournal/article/view/253719 (accessed: 13 September 2026).