Abu Masarrah , A., and Y. Al-Sawalmeh. “Using Rasch Trees Method to Detect Differential Item ‎Functioning in the Jordanian National Test in ‎Mathematics for Fourth Graders‎”. Jordan Journal of Educational Sciences, vol. 17, no. 1, Nov. 2023, pp. 119-34, https://jjes.yu.edu.jo/index.php/jjes/article/view/181.