Chomsky, Noam
Bentang, 2016
Buku Teks
O`Sullivan, Joanne
Hearst Books, 2004
Buku Teks
Barash, David P.
Henry Holt, 2003
Buku Teks SO
Hall, Rodney
University of Queensland Press, 1981
Buku Teks
Information Office of the State Council & State Adminiastration of Cultural Heritage
Cultural Relics Publishing Housing : China Intercontinental Press, 2006
Buku Referensi