Manfaat, Budi, Ayu Nurazizah, and Muhamad Ali Misri. “Analysis of Mathematics Test Items Quality for High School”. Jurnal Penelitian dan Evaluasi Pendidikan 25, no. 1 (August 6, 2021): 108–117. Accessed May 18, 2025. https://journal.uny.ac.id/index.php/jpep/article/view/39174.