Ismail, Muh. Ilyas. “DIFFERENTIAL ITEM FUNCTIONING (KEBERBEDAAN FUNGSI BUTIR)”. Lentera Pendidikan : Jurnal Ilmu Tarbiyah dan Keguruan 14, no. 1 (November 27, 2017): 112-120. Accessed April 28, 2025. https://tes-ojs.uin-alauddin.ac.id/index.php/lentera_pendidikan/article/view/3831.