Ashkenazi, Sarit, and Sarit Silverman. “Multiple Skills Underlie Arithmetic Performance: A Large-Scale Structural Equation Modeling Analysis”. Journal of Numerical Cognition 3, no. 2 (December 22, 2017): 496-515. Accessed April 20, 2024. https://jnc.psychopen.eu/index.php/jnc/article/view/5753.