DELPIERO SIAGIAN, Alexander; PANGARIBUAN, Firman; PURBA, Yoel Octobe. Analisis Kemampuan Pemecahan Masalah Siswa Kelas IX SMP N 7 Pematangsiantar Pada Materi Kekongruenan dan Kesebangunan. Innovative: Journal Of Social Science Research, [S. l.], v. 4, n. 6, p. 7423–7429, 2024. DOI: 10.31004/innovative.v4i6.16860. Disponível em: https://j-innovative.org/index.php/Innovative/article/view/16860. Acesso em: 6 jun. 2026.