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Ōkunoshima OkinoshimaTài liệu tham khảo
WikiPedia: Ōkunoshima http://apike.ca/japan_okunoshima.html http://links.jstor.org/sici?sici=0091-6765(199605)... //tools.wmflabs.org/geohack/geohack.php?language=v... https://www.youtube.com/watch?v=Nj5qfO0UqQA https://commons.wikimedia.org/wiki/Category:Okunos...