Dewi, R., S. Letchmi Panduragan, and N. Syazana Umar. “The Relationship Between Self-Efficacy and Coping Mechanisms With Quality of Life in Breast Cancer Patients”. KnE Social Sciences, Vol. 8, no. 14, Aug. 2023, pp. 278–289, doi:10.18502/kss.v8i14.13837.