et. al., Abdul Wahid Qassim Saleh Al-Saadi,. “Analysis Of Mathematics Books In The Basic Education Stage According To TIMSS Standards”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 7 (April 16, 2021): 3051–3059. Accessed May 2, 2024. https://turcomat.org/index.php/turkbilmat/article/view/3922.