Marina, Lilis, Dedek Andrian, and Astri Wahyuni. “Pelatihan Penggunaan Software Bilog Untuk Analisis Butir Soal Bagi Guru-Guru SMA Plus Binabangsa Pekanbaru”. Community Education Engagement Journal 1, no. 1 (September 27, 2019): 42–51. Accessed June 24, 2024. https://journal.uir.ac.id/index.php/ecej/article/view/3849.