Fauzie M, Pada AUT, Supriatno S. Analysis of the difficulty index of item bank according to cognitive aspects during the Covid-19 pandemic. Jurnal Penelitian dan Evaluasi Pendidikan [Internet]. 2021 Dec. 31 [cited 2025 May 5];25(2):162-9. Available from: https://journal.uny.ac.id/index.php/jpep/article/view/42603