"Citrus × aurantium L". Germplasm Resources Information Network. United States Department of Agriculture. 1999-12-17. Diarsipkan dari versi asli tanggal 2015-10-18. Diakses tanggal 2010-01-05.
web.archive.org
"Citrus × aurantium L". Germplasm Resources Information Network. United States Department of Agriculture. 1999-12-17. Diarsipkan dari versi asli tanggal 2015-10-18. Diakses tanggal 2010-01-05.