@article{TANIŞLI2011_131952,
author={Dilek TANIŞLI and Nilüfer Yavuzsoy KÖSE},
title={Equal sign and relational thinking in elementary mathematics textbooks},
year={2011},
journal={Necatibey Eğitim Fakültesi Elektronik Fen ve Matematik Eğitimi Dergisi},
issn={1307-6086},
volume={5},
number={2},
url={http://search/yayin/detay/131952}
}