*"Oyake Akahachi." ''Okinawa rekishi jinmei jiten'' (沖縄歴史人名事典, "Encyclopedia of People of Okinawan History"). Naha: Okinawa Bunka-sha, 1996. p18. | *"Oyake Akahachi." ''Okinawa rekishi jinmei jiten'' (沖縄歴史人名事典, "Encyclopedia of People of Okinawan History"). Naha: Okinawa Bunka-sha, 1996. p18. |