Mansyur, and Muliana. “Detecting Differential Item Functioning and Differential Test Functioning on Math School Final-Exam”. International Journal on Advanced Science, Engineering and Information Technology 6, no. 4 (August 4, 2016): 437–440. Accessed June 3, 2024. http://ijaseit.insightsociety.org/index.php/ijaseit/article/view/849.