Muhammad Bagus Syuhada. The Relationship Between Stress Levels And Headaches And Academic Achievement In Students Of The Faculty Of Medicine, Muhammadiyah University Of North Sumatra, Class of 2023. IJHET [Internet]. 2026 Sep. 29 [cited 2026 Sep. 30];5(3). Available from: https://afdifaljournal.com/journal/index.php/ijhet/article/view/1221