Analisis Kebutuhan Pengembangan Media Bola-Bola Bilangan Bulat untuk Siswa Kelas IV Sekolah Dasar. Jurnal Simki Postgraduate, [S. l.], v. 2, n. 4, p. 306–312, 2023. DOI: 10.29407/jspg.v2i4.467. Disponível em: https://jurnal.unpkediri.ac.id/index.php/JSPG/article/view/467. Acesso em: 27 feb. 2026.