De Blij, Harm J.
Physical geography of the global environment
John Wiley & Sons, 1996
 Buku Referensi
De Blij, Harm J.
Physical geography of the global environment
John Wiley & Sons, 1993
 Buku Teks SO
Hidore, John J.
Physical geography : earth systems
Scott, Foresman, 1974
 Buku Teks
Marsh, William M.
Physical geography : great systems and global environments
Cambridge University Press, 2013
 Buku Teks
Strahler, Arthur N.
Physical geography
John Wiley & Sons, 1975
 Buku Teks