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2. Flipping the classroom: Homework in class, lessons at home.;B.Alverez;Education Digest: Essential Readings Condensed For Quick Review,2012
3. Ascione, L. (2017, July 27). 8 principles to help you advance to Flipped 3.0. Retrieved from https://www.eschoolnews.com/2017/07/27/flipped-learning-30/
4. Flips and flops