Bell M, Shumway S, Wright G. An Investigation of the Impact of a Flipped Classroom Instructional Approach on High School Students’ Content Knowledge and Attitude Toward the Learning Environment. ASSRJ [Internet]. 2020May31 [cited 2024Nov.29];7(5):338-49. Available from: http://804474.wannyin.cyou/index.php/ASSRJ/article/view/8259