Harahap, Yahdiana, Nathania Leony, Letare Merry Chresia Silalahi, and Rizka Andalusia. 2018. “SIMULTANEOUS QUANTIFICATION OF TAMOXIFEN AND 4-HYDROXY-N-DESMETHYLTAMOXIFEN LEVELS IN HUMAN PLASMA BY LIQUID CHROMATOGRAPHY-TANDEM MASS SPECTROMETRY: DEVELOPMENT AND APPLICATION IN BREAST CANCER PATIENTS”. International Journal of Applied Pharmaceutics 10 (1):370-75. https://doi.org/10.22159/ijap.2018.v10s1.82.