Khusana Rahma 2020. Cognitive therapy : Self help group to stress levels in breast cancer patients in rsud Dr. Moewardi surakarta. International Journal of Allied Medical Sciences and Clinical Research. 6, 4 (Aug. 2020), 960–968. DOI:https://doi.org/10.61096/ijamscr.v6.iss4.2018.960-968.