เขียวฉ่ำ น, โพธิสุวรรณ ช, ไสยโสภณ ป. Guidelines for Strengthening of the Student Council by Progressive Educational Approach for Schools under Phetchabun Primary Educational Service Area Office 2. J. IND. EDUC. [Internet]. 2015 Dec. 31 [cited 2024 May 5];14(3):475-80. Available from: https://ph01.tci-thaijo.org/index.php/JIE/article/view/122581