: authors list (link)↑ "United States Patent Office: Method of coloring eggs or the like". 1925-06-19. සම්ප්‍රවේශය 2011-09-17.↑ Slimestad, R.; Fossen, T.; Vågen, I. M. (2007). "Onions: a source of unique dietary flavonoids". Journal of Agricultural and Food Chemistry. 55 (25): 10067–80. doi:10.1021/jf0712503. PMID 17997520.{{cite journal}}:  CS1 maint: multiple names: authors list (link)↑ Williamson, Gary; Plumb, Geoff W.; Uda, Yasushi; Price, Keith R.; Rhodes, Michael J.C. (1997). "Dietary quercetin glycosides: antioxidant activity and induction of the anticarcinogenic phase II marker enzyme quinone reductase in Hepalclc7 cells". Carcinogenesis. 17 (11): 2385–2387. doi:10.1093/carcin/17.11.2385. PMID 8968052.{{cite journal}}:  CS1 maint: multiple names: authors list (link)↑ Olsson, M.E.; Gustavsson, K.E.; and Vågen, I.M. (2010). "Quercetin and isorhamnetin in sweet and red cultivars of onion (Allium cepa L.) at harvest, after field curing, heat treatment, and storage". Journal