AMIR, N. F. . MENGHITUNG PERKALIAN DENGAN BENDA-BENDA TERDEKAT : (Calculating Multiplication with the Closest Objects). Uniqbu Journal of Exact Sciences, [S. l.], v. 2, n. 1, p. 20–30, 2021. DOI: 10.47323/ujes.v2i1.107. Disponível em: https://ejournal-uniqbu.ac.id/index.php/ujes/article/view/107. Acesso em: 12 jan. 2026.