MAHARANI, Reni; WITARSA, Ramdhan; WAHYUNI, Molli. Materi Operasi Hitung Bilangan Bulat pada Pembelajaran Matematika Kelas VI. Journal of Education Research, [S. l.], v. 4, n. 3, p. 944–950, 2023. DOI: 10.37985/jer.v4i3.272. Disponível em: https://jer.or.id/index.php/jer/article/view/272. Acesso em: 3 aug. 2025.