PENGARUH MEDIA CORONG BERHITUNG TERHADAP HASIL BELAJAR MATEMATIKA MATERI PERKALIAN . JISD [Internet]. 2026 Feb. 7 [cited 2026 Mar. 24];2(1):28-33. Available from: https://jurnal.unimed.ac.id/2012/index.php/jisd/article/view/70483