Sun, Jerry Chih-Yuan, and Yu-Ting Wu. “Analysis of Learning Achievement and Teacher–Student Interactions in Flipped and Conventional Classrooms”. The International Review of Research in Open and Distributed Learning 17, no. 1 (February 2, 2016). Accessed April 18, 2024. https://www.irrodl.org/index.php/irrodl/article/view/2116.