1. Cronbach, L.J. (1951). Coefficient alpha and the internal structure of tests. Psychometrika, 16, 297–334. https://doi.org/10.1007/BF02310555
2. He, K. (2014). From the essence of the "flipped classroom", we can see the future development of "flipped classroom" in China. Research on Audio-visual Education, 35 (7), 5-16. DOI:10.13811/j.cnki.eer. 2014.07.001.
3. Hu, T. (2011). "Micro-course": a new trend in the development of regional education information resources. Research on audio-visual Education, 10, 61-65.
4. Liao, X. (2014). Comparative discussion on micro-course teaching at home and abroad. Vocational and Technical Education, 32, 88-90. DOI:10.3969 /j.issn.1008-3219.2014.32.028.
5. Liu, G., & Zhang, H. (2018). New Achievements in the Construction of Education with Chinese Characteristics-Review and Foresight of the 12th Five-Year Plan of National Education Science. Educational Research, 39 (8), 28-35.