SIMBOLON, P.; SARAGIH, H.; MARANTIKA BR. BARUS, E. J. The Relationship between Sleep Pattern Disorders and Learning Concentration of Level 3 Nurse Students at STIKes Santa Elisabeth Medan. Jurnal EduHealth, [S. l.], v. 14, n. 02, p. 733–737, 2023. Disponível em: https://ejournal.seaninstitute.or.id/index.php/healt/article/view/2030. Acesso em: 29 apr. 2026.