1. Ahmed, S. (2015). Attitudes towards English Language learning among EFL learners at UMSKAL. Journal of Education and Practice, 6(18), 6-16. Retreived from https://files.eric.ed.gov/fulltext/EJ1079681.pdf
2. Akgündüz, D. & Akınoğlu, O. (2016). The effect of blended learning and social media-supported learning on the students' attitude and self-directed learning skills in science education. The Turkish Journal of Educational Technology, 15(2), 106-115. Retreived from https://files.eric.ed.gov/fulltext/EJ1096457.pdf
3. Arendt, A., Trego, A. & Allred, J. (2016). Students reach beyond expectations with cafeteria style grading. Journal of Applied Research in Higher Education, 8, 2-17. doi: 10.1108/JARHE-03-2014-0048
4. Aşkın, İ. (2015). Üniversite öğrencilerinin öz-yönetimli öğrenme becerilerinin incelenmesi (Doctoral dissertation). Ankara: Hacettepe Üniversitesi Eğitim Bilimleri Enstitüsü. Retreived from http://www.openaccess.hacettepe.edu.tr:8080/xmlui/bitstream/handle/11655/11936/a0a4444d-ef7b-4fc3-9575-f6343ce59410.pdf?sequence=1&isAllowed=y
5. Azevedo, R., Cromley, J. G. & Seibert, D. (2004). Does adaptive scaffolding facilitate students' ability to regulate their learning with hypermedia? Contemporary Educational Psychology, 29(3), 344-370. doi: 10.1007/s11251-005-1273-8