1.
Özyıldırım-Gümüş F, Şahiner Y. Investigation on how pre-service elementary mathematics teachers write and use mathematical definitions. IEJEE [Internet]. 2017 Aug. 23 [cited 2026 Aug. 4];9(3):523-52. Available from: https://www.iejee.com/index.php/IEJEE/article/view/174