S. Shaikh and V. Jain, “A NOVEL REVERSE-PHASE HIGH-PERFORMANCE LIQUID CHROMATOGRAPHIC METHOD FOR SIMULTANEOUS ESTIMATION OF ELLAGIC ACID, QUERCETIN, AND PIPERINE IN AYURVEDIC FORMULATIONS”, Asian J Pharm Clin Res, vol. 11, no. 6, pp. 312–317, Jun. 2018.