สุตนนท์ จุฬารัตน์. “A Compare of Learning Achievement, Problem Solving and Satisfaction With Learning History Entitled ‘Ayutthaya’s History’ of Mattayomsuksa 2 Between Learning Circle and Project Learning Approach”. RMUTI Journal Humanities and Social Sciences 2, no. 1 (June 30, 2015): 21–31. Accessed May 4, 2024. https://so05.tci-thaijo.org/index.php/RMUTI_SS/article/view/195886.