Sinan OLKUN, Melis YEŞİLPINAR, and Sevil KIŞLA. “Turkish First Graders’ Use of Cardinality and Related Concepts in Problem Situations”. Elementary Education Online 13, no. 1 (December 19, 2023): 146–154. Accessed July 8, 2024. https://ilkogretim-online.org./index.php/pub/article/view/6153.