McCulloch, Gregory, author
Clarendon Press , 1989
Buku Teks
Chomsky, Noam, author
Cambridge University Press, 2002
eBooks
Mcgilvray, James, author
Polity, 2014
Buku Teks
Hari Purwanto, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2013
UI - Skripsi Membership
Ayer, A. J. (Alfred Jules), 1910-1989, author
Dover, 1952
Buku Teks