HISTOGRAM, Editor. Back Cover. HISTOGRAM: Jurnal Pendidikan Matematika, [S. l.], v. 1, n. 2, 2018. DOI: 10.31100/histogram.v1i2.108. Disponível em: https://journal.matappa.ac.id/index.php/histogram/article/view/108. Acesso em: 15 jan. 2026.