Muhammad Syahreza. The Relationship Of The Level Of Correct Istinjak Knowledge On The Incidence Of White Disease In Students Of Muhammadiyah 1 High School, Medan City. IJHET [Internet]. 2026 Sep. 15 [cited 2026 Sep. 27];5(3). Available from: https://afdifaljournal.com/journal/index.php/ijhet/article/view/1178