«This is Japan: Miyazaki Prefecture Aoshima Island» (անգլերեն). Asahi Shimbun. 1971. «Miyazaki Prefecture Aoshima Island in Nichinan Coast Quasi-National Park is a small island only 1 .5 kilometre in circumference washed by the black current and covered with 240 varieties of subtropical plants including betel-nut palm trees.»
