Atlas of Chinaese Goldfish
http://www.thaquarium.com/e_version/e-appreciate3.htm

Japanese Goldfish Catalog
http://www.samurai-goldfish.net/

Goldfish Photo Gallery
http://goldfish.nova.org/grh_photos.html

Side for Goldfishkeepers
https://goldfishkeepers.com/

About goldfish
https://www.about-goldfish.com/

Are You a Confident Goldfish Owner?
https://puregoldfish.com/

Kokos Goldfish
https://www.kokosgoldfish.com/cycle.html

Japan’s History of Goldfish – Variations, Art, and More
https://wow-j.com/en/Allguides/other/tip...ers/01647_en/#1

Koriyama Goldfish Museum
https://www.kingyoen.com/en/about.html

Goldfish Species,
https://www.city.yamatokoriyama.nara.jp/...gyo/001463.html

Goldfish History
https://www.city.yamatokoriyama.nara.jp/...gyo/001461.html

Tung Hoi Aquarium
http://www.thaquarium.com/e_version/jenis.htm

Zhao`s Fancies
https://zhaosfancies.com/our-fancy-gallery

The Goldfish Society of America (GFSA)
http://www.goldfishsociety.org/
http://goldfish.nova.org/gfsa.html

About Bristol Shubunkin
http://www.bristol-aquarists.org.uk/goldfish/bshub/bshub.htm
https://www.practicalfishkeeping.co.uk/f...ional-treasure/

Studies on breeding and feeding patterns of the goldfish
http://www.lrrd.org/lrrd23/11/shar23231.htm

How Can You Differentiate Male Or Female Fishes?
http://www.rafflesgold.com/forums/index....3&hl=femaleanal