Sari, Nurratri Kurnia, and Muhlis Fajar Wicaksana. 2023. “Analysis of Online Learning Student Activities Using the Problem Based Learning (PBL) Model through Lesson Study”. Didaktika Tauhidi: Jurnal Pendidikan Guru Sekolah Dasar 10 (1):29-43. https://doi.org/10.30997/dt.v10i1.5765.