Fitri, A. Ulfiana, Nabila Gita Salsabila, and Irwandi Rachman. “The Effect of CERDIK-Based Leaflet Health Education on the Knowledge Level of Hypertensive Patients in a Primary Health Center”. SIGn Journal of Public Health 5, no. 1 (May 31, 2026): 1-13. Accessed September 16, 2026. https://jurnal.penerbitsign.com/index.php/sjph/article/view/v5n1-001.