“Penggunaan Alat Permainan Edukatif “Puzzle Jam” Terhadap Kemampuan Kognitif “Mengenal Lambang Bilangan””. 2018. PROCEEDING: The Annual International Conference on Islamic Education 3 (1): 200-207. https://jurnal.stitnualhikmah.ac.id/index.php/proceedings/article/view/269.