Setyaedhi , Hari Sugiharto, and Atan Pramana. “Feasibility of E-Learning Textbooks of Item Analysis Material to Improve Student Competence”. Jurnal Edutech Undiksha 12, no. 1 (July 24, 2024): 39–51. Accessed February 22, 2025. https://ejournal.undiksha.ac.id/index.php/JEU/article/view/62084.