RAHMAD LANASIR; PIPIN YUNUS; HASLINDA DAMANSAYAH. The Effectiveness of Catheterization Pre-Action Education on the Knowledge of Coronary Heart Patients in the ICVCU Room of Prof. Dr. H. Aloei Soboe Hospital, Gorontalo City. International Journal of Health, Economics, and Social Sciences (IJHESS), v. 8, n. 1, p. 153~159, 5 Jan. 2026.