日本語: Norman,V.Garth,1976'Izapa sculpture',part2:Text(Papers of the New World Archaeological Foundation),Fig.6.10及び Hellmuth,Nicolas M.1976,'Maya archaeology, Tikal, Copan, travel guide, 1978: A complete guide to all the Maya ruins of Central America,p.69(rubbing&photo)を参照しsiyajkakが作成
{{GFDL}}Norman,V.Garth,1976'Izapa sculpture',part2:Text(Papers of the New World Archaeological Foundation),Fig.6.10及び Hellmuth,Nicolas M.1976,'Maya archaeology, Tikal, Copan, travel guide, 1978: A complete guide to all the Maya ruins of Central Americ