“Education on the Role of Electrolytes in Maintaining Heart Health for Students Al-Azhar Medan Private High School”. JURNAL PENGMAS KESTRA (JPK) 4, no. 2 (December 30, 2024): 160–166. Accessed December 23, 2025. https://ejournal.medistra.ac.id/index.php/JPK/article/view/2385.