Arianto Munthe, Daniel Sipahutar, Nova Simbolon, Debora Lumbantobing and Debora Ambarita 2025. Analisis Kesulitan Mahasiswa Belajar Struktur Aljabar Pada Materi Grup Faktor. As-Salam: Journal Islamic Social Sciences and Humanities. 3, 1 (Feb. 2025), 110–120. DOI:https://doi.org/10.66867/as.v3i1.93.