Nuraini, T., J. Intan, D. Gayatri, and T. Afriyani. “Low Self-Efficacy in Breast Cancer Patients Undergoing Treatment During the COVID-19 Pandemic”. KnE Medicine, Vol. 3, no. 1, Feb. 2023, pp. 39–49, doi:10.18502/kme.v3i1.12696.