NAIHELI, M. D.; NENOHAI, J. M.; BULU, V. R. PENINGKATAN KETERAMPILAN BERHITUNG PENJUMLAHAN DAN PENGURANGAN MELALUI MODEL PROBLEM BASED LEARNING BERBANTUAN MEDIA PAPAN PINTAS DI KELAS II SD INPRES TENAU. SENTRI: Jurnal Riset Ilmiah, [S. l.], v. 3, n. 7, p. 3205–3211, 2024. DOI: 10.55681/sentri.v3i7.3110. Disponível em: https://ejournal.nusantaraglobal.or.id/index.php/sentri/article/view/3110. Acesso em: 7 oct. 2024.