DAMAYANTI, R.; NASUTION, I. S. Pengaruh Media Geoboard terhadap Kemampuan Menghitung Keliling Bangun Datar di Sanggar Belajar Kampung Bharu Malaysia. SENTRI: Jurnal Riset Ilmiah, [S. l.], v. 5, n. 1, p. 255–263, 2026. DOI: 10.55681/sentri.v5i1.5398. Disponível em: https://ejournal.nusantaraglobal.ac.id/index.php/sentri/article/view/5398. Acesso em: 3 mar. 2026.