http://mainichi.jp/articles/20160330/k00/00m/040/085000c

http://www.toben.or.jp/message/testpdf/20160330_2.pdf

http://www.asahi.com/articles/ASJ3S7X5HJ3SUTPB024.html

http://www.asahi.com/articles/ASJ3X6V9JJ3XULOB017.html

http://zasshi.news.yahoo.co.jp/article?a=20160401-00506993-shincho-soci&pos=1

http://ryukyushimpo.jp/editorial/entry-250198.html http://headlines.yahoo.co.jp/hl?a=20160403-00000005-asahik-soci