11. OECD (2014) Reviews of Vocational Education and Training A Skills beyond School Review of South Africa. Paris: OECD.
12. Osguthorpe R.T., Graham C.R. (2003) Blended Learning Systems: Definitions and Directions. Quarterly Review of Distance Education, vol. 4, no 3, pp. 227-234.
13. Owston R. (2018) Empowering Learners through Blended Learning. International Journal on e-Learning, vol. 17, no 1, pp. 65-83.
14. Santagata R., Angelici G. (2010) Studying the Impact of the Lesson Analysis Framework on Preservice Teachers' Abilities to Reflect on Videos of Classroom Teaching. Journal of Teacher Education, vol. 61, no 4, pp. 339-349.
15. Schwarz B., Linchevski L. (2007) The Role of Task Design and Argumentation in Cognitive Development during Peer Interaction: The Case of Proportional Reasoning. Learning and Instruction, vol. 17, no 5, pp. 510-531.
16. Snoek M., Swennen A., van der Klink M. (2011) The Quality of Teacher Educators in the European Policy Debate: Actions and Measures to Improve the Professionalism of Teacher Educators. Professional Development in Education, vol. 37, no 5, pp. 651-664.
17. Spring K., Graham C. (2017) Blended Learning Citation Patterns and Publication Networks across Seven Worldwide Regions. Australasian Journal of Educational Technology, vol. 33, no 2, pp. 24-50.
18. Tham R., Tham L. (2013) Challenges Facing Blended Learning in Higher Education in Asia. International Journal on E-Learning, vol. 12, no 2, pp. 209-219.
19. UNESCO (2013) Intercultural Competences. Conceptual and Operational Framework.