ANALISIS MASALAH PEMBELAJARAN PADA OPERASI HITUNG BILANGANBULAT DI MASA PANDEMI COVID-19. Primary: Jurnal Pendidikan Guru Sekolah Dasar, [S. l.], v. 11, n. 2, p. 382–392, 2022. DOI: 10.33578/jpfkip.v11i2.8848. Disponível em: https://primary.ejournal.unri.ac.id/index.php/JPFKIP/article/view/519. Acesso em: 15 dec. 2025.