McWilliams, Wayne C., author
Adamantine Press, 1990
Buku Teks
Ansari, Tamim, author
PublicAffairs, 2009
Buku Teks
edited by Alexander T.J. Lennon
The Mitt Press, 2002
Buku Teks
Bauer, Susan Wise, author
Elex Media Komputindo, 2012
Buku Teks
Jongsoo, James Lee
Palgrave Macmillan, 2006
Buku Teks