VERMINUS. THE EFFECTIVENESS OF MULTIPLICATION BOARD MEDIA ON THE ARITHMETIC ABILITY OF FOURTH GRADE STUDENTS . AL KHAWARIZMI: Jurnal Pendidikan Matematika, [S. l.], v. 6, n. 2, p. 43–48, 2026. DOI: 10.46368/kjpm.v6i2.4975. Disponível em: https://jurnalstkipmelawi.ac.id/index.php/KJPM/article/view/4975. Acesso em: 25 jul. 2026.