Ahmed, A. , Gulfraz, M. and Khalique, N. 2018. Isolation, Purification and Quantification of Quercetin and Primary Metabolites from Onion (Allium cepa L.): Isolation, Purification, Quantification of Quercetin from Onion. Proceedings of the Pakistan Academy of Sciences: B. Life and Environmental Sciences. 55, 1 (Mar. 2018), 79–86.