Nihayati, H. E., Nurhanifah, L., & Krisnana, I. (2021). The Effect of Psychoeducation on Self-Efficacy and Motivation for Taking Treatment in Breast Cancer Patients (Ca Mammae). Jurnal Ners, 16(1), 96–100. https://doi.org/10.20473/jn.v16i1.22560