Suharno Usman, Christha Zenithy Tamburian, Imelda Sirait and Muhamad Nurmansyah (2025) “SERUM ELECTROLYTE LEVELS IN HEART FAILURE PATIENTS WITH A HYPERTENSION HISTORY”, Journal of Vocational Health Studies, 9(2), pp. 77–86. doi: 10.20473/jvhs.V9.I2.2025.77-86.