*Matsui, Dr. Yoshiichi, Goldfish Guide, 2nd Edition, TFH Publications, Inc, Neptune, N.J. 1981*Hervey, G.F. & Hems, J.
* Matsui, Dr. Yoshiichi, GOLDFISH GUIDE, 2nd Edition, TFH Publications, Inc, Neptune, N.J. 1981* Hervey, G.F. & Hems, J.