Quantitative and Optimization of Phenolic Acid Extracted from Pomegranate by High Performance Liquid Chromatography (HPLC), Noratiqah, Jumli Mimie, Norhaslinda Ridzwan, Amin Baig Atif, and Khalili Rohin Mohd Adzim , Pharmacognosy Journal, August 2018, Volume 10, Issue 5, p.969-972, (2018)