Sofi Muthia Yusridana, Yuli Prapanca Satar and Ahdun Trigono 2026. Determinants Affecting The Utilization of Instagram as A Promotional Tool Among Internal Medicine Patients at TK IV Cijantung Hospital, Kesdam Jaya. International Journal of Health Engineering and Technology. 4, 5 (Jan. 2026). DOI:https://doi.org/10.55227/ijhet.v4i5.520.