edited by Kajsa Ellegard
Routledge, 2019
Buku Teks
De Blij, Harm J., author
John Wiley & Sons, 1993
Buku Teks
Haggett, Peter, author
Prentice-Hall, 2001
Buku Teks
De Blij, Harm J., author
John Wiley & Sons, 1996
Buku Referensi
Greenwald, Michael L., author
Longman, 2002
Buku Teks