1. Prehistory of Japan;Aikens,1982
2. Fishing adaptation of prehistoric hunter-gatherers at the Nittano site, Japan;Akazawa;Journal of Archaeological Science,1980
3. Akita-ken Iseki Chizu (Yuri-Chiku-Ban),2001
4. Aomori-ken Iseki Chizu,2009
5. China, Korea, and Japan;Barnes,1993