↑ "An Interpet Guide to Fancy Goldfish" by Dr. Chris Andrews, Interpet Publishing, 2002. - ISBN 1-902389-64-6
↑ "Fancy Goldfish: A Complete Guide to Care and Collecting" by Dr. Erik L. Johnson, D.V.M. and Richard E. Hess, Weatherhill, Shambala Publications, Inc., 2006. - ISBN 0-8348-0448-4
