Hamdi, I. A. H., Meutia, N. ., Ibrahim, S. ., & Hamdi, T. . (2022). The Relationship between Stress and Incidence of Sleep Disorder among Students at the Faculty of Medicine Universitas Sumatera Utara. Sumatera Medical Journal, 5(2). https://doi.org/10.32734/sumej.v5i2.7988