Bunga Lestari, Lailatun Nur Kamalia Siregar. The Effect of the Use of Multiplication Bar Media on the Understanding of Mathematics Multiplication Concepts for Grade IV Students of SDS IT Madani Southeast Aceh. basica [Internet]. 2026 Jul. 1 [cited 2026 Jul. 10];6(2):1-14. Available from: https://ejournal.insuriponorogo.ac.id/index.php/basica/article/view/9670