Hannerz, Ulf
Routledge, 1996
Buku Teks
Capra, Fritjof, author
Harper Collins, 2002
Buku Teks
Campbell, Neil A., 1946-2004, author
The Benjamin/Cummings, 1994
Buku Teks
Seiler, William J., author
Pearson, 2008
Buku Teks
Fuentes, Agustin, author
McGraw-Hill, 2012
Buku Teks