Cambridge University Press, 2010
eBooks
Mandik, Pete, author
Wiley-Blackwell, 2014
Buku Teks
McCulloch, Gregory, author
Clarendon Press , 1989
Buku Teks
Mcgilvray, James, author
Polity, 2014
Buku Teks
Chomsky, Noam, author
Cambridge University Press, 2002
eBooks