GUNAWAN; HIDAYATI, K. IRT Method for Measuring The Quality of High School Mathematics Mid-Semester Assessment Questions in Magelang. Hipotenusa: Journal of Mathematical Society, [S. l.], v. 6, n. 2, p. 252–265, 2024. Disponível em: https://ejournal.uinsalatiga.ac.id/index.php/hipotenusa/article/view/2036. Acesso em: 15 jan. 2025.