Ş. Koza Çiftçi, Pınar Yıldız. (2019). The Effect of Gender on Algebra Achievement: The Meta-Analysis of Trends in International Mathematics and Science Study (TIMSS). Turkish Journal of Computer and Mathematics Education (TURCOMAT), 10(3), 617–627. Retrieved from https://turcomat.org/index.php/turkbilmat/article/view/216