Y. Harahap, A. Maulidina, and D. Ramadon, “THE EFFECT OF ANTICOAGULANT TYPES ON THE IN VITRO ANALYSIS OF CLOPIDOGREL IN HUMAN PLASMA USING LIQUID CHROMATOGRAPHY TANDEM-MASS SPECTROMETRY”, Int J App Pharm, vol. 10, no. 1, pp. 392–395, Dec. 2018.