De Blij, Harm J.
Physical geography of the global environment
John Wiley & Sons, 1996
 Buku Referensi
Strahler, Alan H.
Physical geography : science and systems of the human environment
John Wiley & Sons, 1997
 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
Trewartha, Glenn T.
Physical elements of geography
McGraw-Hill, 1967
 Buku Teks