LAILA IKLIMAH PANJAITAN; ZUNIDAR; NURDIANA SIREGAR. PENGARUH MEDIA GEOBOARD TERHADAP KEMAMPUAN PEMAHAMAN MATEMATIS SISWA KELAS IV SDN 112294 KANOPAN ULU. Jurnal Penelitian Pendidikan Indonesia (JPPI), Indonesia, v. 3, n. 1, p. 133–143, 2025. DOI: 10.62017/jppi.v3i1.5959. Disponível em: https://jurnalistiqomah.org/index.php/jppi/article/view/5959.. Acesso em: 21 mar. 2026.