Purwati, Heni, Heri Retnawati, Jailani Jailani, and Trie Hartiti Retnowati. 2021. “Analisis Karakteristik Butir Soal Ujian Nasional Matematika SMP/MTs Berdasarkan Pendekatan Teori Tes Klasik”. Jurnal Sains Dan Edukasi Sains 4 (2):46-51. https://doi.org/10.24246/juses.v4i2p46-51.