ADMIN, Admin. Back Cover. HISTOGRAM: Jurnal Pendidikan Matematika, [S. l.], v. 4, n. 2, 2021. DOI: 10.31100/histogram.v4i2.1142. Disponível em: https://journal.matappa.ac.id/index.php/histogram/article/view/1142. Acesso em: 12 jun. 2026.