NO 2, Volume 19. COVER. Majalah Ilmiah Matematika dan Statistika, [S.l.], v. 19, n. 2, sep. 2019. ISSN 2722-9866. Available at: <https://jurnal.unej.ac.id/index.php/MIMS/article/view/17265>. Date accessed: 22 nov. 2024.