Khan, Sadia, et al. “Gratitude, Self-Efficacy and Self-Care Behaviors Among Patients With Cardiovascular Diseases: Gratitude, Self-Efficacy and Self-Care Behavior”. Pakistan BioMedical Journal, vol. 7, no. 04, Apr. 2024, pp. 30-35, https://doi.org/10.54393/pbmj.v7i04.1078.