PAYDAR, Seyhan, and Adem DOĞAN. “Examining 4th Grade Gifted and Non-Gifted Students Understanding Levels of Place Value”. International Journal of Psychology and Educational Studies 8, no. 3 (October 23, 2022): 161–179. Accessed May 2, 2024. https://ijpes.com/index.php/ijpes/article/view/497.