@article{AKSAN2019_331677,
author={Zeynep AKSAN and Dilek Çelikler},
title={Mental Models Regarding the Concepts of “Space,” “Universe” and “Galaxy” Among Secondary School Students},
year={2019},
journal={İlköğretim Online (elektronik)},
issn={1305-3515},
volume={18},
number={3},
url={http://search/yayin/detay/331677}
}