مصطفى الحرباوي خ. “Estimating the Ability of Mathematics Male and Female Teachers of the Mathematical Conceptions Taught by Them in the Primary Stage”. College of Basic Education Research Journal, vol. 6, no. 3, Nov. 2007, pp. 1-22, https://stats.uomosul.edu.iq/index.php/berj/article/view/38372.