Marianti, Sukaesi, Ana Rufaida, Nur Hasanah, and Sofia Nuryanti. “Comparing Item-Total Correlation and Item-Theta Correlation in Test Item Selection: A Simulation and Empirical Study”. Jurnal Penelitian dan Evaluasi Pendidikan 27, no. 2 (December 31, 2023): 133–145. Accessed May 2, 2025. https://journal.uny.ac.id/index.php/jpep/article/view/61477.