Iswahyudi, A. A. A.-Z., W. Wisudawan, and A. Ardiyanto. “Effectiveness of Angiotensin Converting Enzyme Inhibitors and Beta-Blockers in Reducing Mortality in Patients With Congestive Heart Failure”. Journal La Medihealtico, Vol. 7, no. 2, May 2026, pp. 481-93, https://newinera.com/index.php/JournalLaMedihealtico/article/view/5613.