Heinemann Educational Books, 1986
Buku Referensi
Heinemann, Margot
Seven Seas, 1962
Buku Teks
editor, Michael I. Greenberg
Erlangga, 2005
Buku Teks
edited by F. Paulsen, J. Waschke
Elsevier/Urban & Fischer, 2011
Buku Referensi
Badan Informasi Geospasial Indonesia
Badan Informasi Geospasial, 2011
Buku Referensi