@article{KAHRAMAN2014_154253,
author={Nurcan KAHRAMAN},
title={Cross-grade comparison of relationship between students’ engagement and TIMSS 2011 science achievement},
year={2014},
journal={Eğitim ve Bilim},
issn={1300-1337},
volume={39},
number={172},
url={http://search/yayin/detay/154253}
}