หงษ์ขุนทด อ., & ศรีฟ้า ไ. (2018). MODEL OF FLIPPED CLASSROOM LEARNING ENVIRONMENT FOR MUSIC LESSONS. Sripatum Review of Humanities and Social Sciences, 15(2), 119–129. Retrieved from https://so05.tci-thaijo.org/index.php/spurhs/article/view/115565