Dr Zulbiye Toluk. Ucuncu Uluslarasi Matematik ve Fen Arastirmasi (TIMSS): Matematik Nedir?. Elementary Education Online [Internet]. 2003 Mar. 12 [cited 2024 Jul. 3];2(1):36-41. Available from: https://ilkogretim-online.org/index.php/pub/article/view/854