Jeju Islan: an Island of sky and sea
Jeju Tourism Organization, 2011
 Buku Teks
From sky to sea: environmental and development in Sulawesi
Departhemen of Geography University of Waterloo, 2005
 Buku Teks
Chichester, Francis Sir
The lonely sea and the sky / Sir Francis Chichester
Ballantine Books, 1964
 Buku Teks
Aiu Ahra
Sky
Gramedia Pustaka Utama, 2016
 Buku Teks
Winton, Tim
That eye, the sky
Australian Large Print, 1987
 Buku Teks