1. Status and management of world sea urchin fisheries;Andrew;Oceanogr. Mar. Biol. Ann. Rev.,2002
2. State of sea-urchin fisheries 2003;Andrew,2004
3. Arakaki, Y., 1989. A comparative ecological and reproductive study on the four types of sea urchin, Echinometra mathaei (Blainville) on Okinawan reef flat. Master's thesis. University of the Ryukyus, Japan, 60 pp.
4. Physiological adaptation and reproduction of the four types of Echinometra mathaei (Blainville);Arakaki,1991
5. Morphological comparison of black Echinometra individuals among those in the Indo-West Pacific;Arakaki;Zool. Sci.,1999