Hans-Samuel Bien, Josef Stawitz, Klaus Wunderlich. (2005). Anthraquinone Dyes and Intermediates. in: Ullmann’s Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH, 355 or. doi:10.1002/14356007.a02..
Padma S. Vankar, Rakhi Shanker, Debajit Mahanta and S.C. Tiwari. (2008). «Ecofriendly sonicator dyeing of cotton with Rubia cordifolia Linn. using biomordant» Dyes and Pigments 76 (1): 207-212. doi:10.1016/j.dyepig.2006.08.023..
reference.com
dictionary.reference.com
(Ingelesez)«Alizarin»Dictionary.com Unabridged (v 1.1) (Random House, Inc.).