Jeju Island : reaching to the core of beauty
Hanguk Kukche Kyoryu Chaedan
Seoul Selection, 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
Ishimure Michiko's writing in ecocritical perspective : between sea and sky
edited by Bruce Allen and Yuki Masami
Lexington Books, 2016
 Buku Teks