Syaidah, Nissa’atul, and Silviana Nur Faizah. 2021. “DEVELOPING ELECTRONIC STUDENT-BASED PROBLEM WORKSHEET FOR PRIMARY SCHOOL STUDENT”. Al-Bidayah : Jurnal Pendidikan Dasar Islam 13 (2):405-20. https://doi.org/10.14421/al-bidayah.v13i2.699.