Umi Salamah, Yuni Susilowati, Ayu Pratiwi, and B. . Oliber A. Arde, “Relationship between Stress Levels and Sleep Quality of Breast Cancer Patients Undergoing Chemotherapy at Dharmais Cancer Hospital, DKI Jakarta Province in 2022”, Health, sciences, vol. 16, no. 03, pp. 219–228, Aug. 2023.