↑ Hiroyuki, O. (2014, March 29).Tyoukoureika no shima “Ajishima” ha yomigaeruka(Can Aji Island - which is turning gray - quickly reinvent itself?), TOYOKEIZAI ONLINE. Retrieved: http://toyokeizai.net/articles/-/33838 [July 21, 2014].
↑ Hiroyuki, O. (2014, March 29).Tyoukoureika no shima “Ajishima” ha yomigaeruka(Can Aji island which is turning gray very quickly rebirth?), TOYOKEIZAI ONLINE. Retrieved: http://toyokeizai.net/articles/-/33838 [July 21, 2014].