ZEBUA, Stepani Grace; SIMANJUNTAK, Ruth M.; HUTAURUK, Agusmanto J.B. Efektivitas Model Project Based Learning terhadap Kemampuan Pemecahan Masalah Matematissiswa pada Materi Kubus dan Balok di Kelas VIII UPT SPF SMP Negeri 1 Sunggal T.A 2023/2024. Innovative: Journal Of Social Science Research, [S. l.], v. 3, n. 5, p. 839–847, 2023. Disponível em: http://j-innovative.org/index.php/Innovative/article/view/4929. Acesso em: 19 aug. 2026.