S. Rao, B. Balaswami, P. V. Ramana, P. Sanjeeva, and G. Srenivasulareddy, “A NEW STABILITY-INDICATING RP-HPLC-PDA METHOD FOR SIMULTANEOUS ESTIMATION OF TRIPLICATE MIXTURE OF RAMIPRIL, ATORVASTATIN AND CLOPIDOGREL IN TABLET DOSAGE FORM”, Int J App Pharm, vol. 10, no. 5, pp. 90–96, Sep. 2018.