نصور رغداء. “The Effect Of Using Class Activities On Developing Numerical Sense Skills Among Basic Seventh Graders (A Semi-Empirical Study In The City Of Lattakia)”. Tishreen University Journal- Arts and Humanities Sciences Series 42, no. 4 (September 19, 2020). Accessed May 19, 2024. https://journal.tishreen.edu.sy/index.php/humlitr/article/view/9817.