VANITHA C, SATYANARAYANA SV, and BHASKAR REDDY K, “QUALITY BY DESIGN APPROACH TO STABILITY-INDICATING REVERSE-PHASE HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY METHOD DEVELOPMENT, OPTIMIZATION, AND VALIDATION FOR THE ESTIMATION OF SIMEPREVIR IN BULK DRUG: ”, Asian J Pharm Clin Res, vol. 12, no. 5, pp. 93–100, May 2019.