Kadri, Alfansuri, Department of Neurology, Faculty of Medicine, Universitas Sumatera Utara, Indonesia, 20155, Indonesia

• Sumatera Medical Journal Vol. 6 No. 2 (2023): Sumatera Medical Journal (SUMEJ) - Research Article
  Correlation between Blue Light Exposure on Digital Devices Screens and Sleep Quality of Students in The Faculty of Medicine, Universitas Sumatera Utara Class 2019
  Abstract  PDF