PasschierJ., SetyowibowoH., AM HunfeldJ., IskandarsyahA., YudianaW., S. SadarjoenS., D. BaduduF., HeriadyY., and R SuardiD. “Make Self-Help Psychoeducational Programs for Breast Cancer Patients COVID-19 Proof”. Asian Pacific Journal of Cancer Care, Vol. 5, no. S1, Aug. 2020, pp. 123-5, doi:10.31557/apjcc.2020.5.S1.123-125.