O`Brien, Eris, author
Angus & Robertson , 1950
Buku Teks
Pelzer, Karl J.
American Geographical society, 1945
Buku Teks
Harrison, John Armstrong, author
University of Florida, 1953
Buku Teks
Azhrianka Dewi Putri Sudarmanto, author
2016
UI - Skripsi (Membership)
Baron, Robert A., author
Pearson, 2009
Buku Teks