Saepuzaman D, Istiyono E, Haryanto H, Retnawati H, Yustiandi Y. Analisis Karakteristik Butir Soal Fisika Dengan Pendekatan IRT Penskoran Dikotomus dan Politomus . Radiasi [Internet]. 2021Sep.30 [cited 2024Nov.23];14(2):62-5. Available from: https://ebook.umpwr.ac.id/index.php/radiasi/article/view/1200