Analisis Kualitas Butir Soal Ujian Akhir Semester Genap Mata Pelajaran Ekonomi Kelas XI SMA Negeri 1 Purworejo Tahun Pelajaran 2016/2017. Surya Edunomics, [S. l.], v. 1, n. 1, p. 33–37, 2017. Disponível em: https://jurnal.umpwr.ac.id/suryaedunomics/article/view/1094. Acesso em: 15 sep. 2026.