Ahmet TEKBIYIK, and Mustafa ÇELİK. “SECOND GRADERS’ MENTAL MODELS AND IMAGES CONCERNING THE CONCEPTS OF EARTH AND SPACE”. International Journal of Eurasia Social Sciences 7, no. 25 (December 1, 2016): 271–289. Accessed May 17, 2025. https://rrpubs.com/index.php/ijoess/article/view/873.