Siregar, K. B., T. W. Manuaba, M. N. D. Lubis, and R. J. Sembiring. “EVALUATION OF CASPASE 3 AS AN INDICATOR FOR BREAST CANCER CHEMOTHERAPY RESPONSE”. Asian Journal of Pharmaceutical and Clinical Research, vol. 11, no. 8, Aug. 2018, pp. 259-62, doi:10.22159/ajpcr.2018.v11i8.26135.