A. Pramudya, M. R. Fadlan, Y. Arifin, and M. S. Rohman, “The Relationship between Left Ventricular Ejection Fraction (EF) and Depression Status, psychopathological status and coping mechanism in Heart Failure Patients: A Cross-Sectional Study in Malang, Indonesia”, jrssem, vol. 5, no. 5, pp. 9491–9501, Dec. 2025.