Yusuf, and Osman Cevat Yavuz. 2016. “Comparison of Cognitive Readiness Levels of the 4th Grade Students of Primary Education by Learning Domains”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 26 (1):139-53. https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/5461.