SIMANJUNTAK, Mayasari; SITEPU, Christina Purnamasari; GINTING, Pretty Viorella Br; PANJAITAN, Simon; SINAGA, Samuel Juliardi. Analisis Proses Pembelajaran Matematika Berbasis Outcome Based Education (OBE) pada Materi Aritmatika Sosial Ditinjau dari Self Confidence Siswa SMP Negeri 3 Kabanjahe. Innovative: Journal Of Social Science Research, [S. l.], v. 3, n. 2, p. 7013–7027, 2023. Disponível em: https://j-innovative.org/index.php/Innovative/article/view/1180. Acesso em: 27 sep. 2026.