SUSANTI, Sani; MICHAEL YUDHA PRATAMA; NATALIA DELA BR SIMAMORA; MAS IREN NIAT ANJELINA ZEBUA; CHRISTIANA JUNITA PANJAITAN; FEBRY YANTI BR GINTING S; LIZA AZZAHRAH. Analisis Dampak Kebiasaan Begadang Terhadap Kosentrasi Belajar Mahasiswa Kos di Universitas Negeri Medan. AR-RUMMAN: Journal of Education and Learning Evaluation, [S. l.], v. 3, n. 1, p. 166–170, 2026. DOI: 10.57235/arrumman.v3i1.8559. Disponível em: https://www.rayyanjurnal.com/index.php/ar-rumman/article/view/8559. Acesso em: 14 jun. 2026.