Prasetsang, C. and Piasiri, S. . (2022) “The learning result of visual art subject for grade 2 students by lesson study and open approach ”, Journal of Research and Development Institute Rajabhat Maha Sarakham University, 9(2), pp. 543–558. Available at: https://so03.tci-thaijo.org/index.php/rdirmu/article/view/261040 (Accessed: 19 May 2024).