Lewis, Wyndham
Greenwood Press, 1952
Buku Teks
Writer's Digest Bokks, 1994
Buku Teks
edited by Barry Turner
Macmillan, 1992
Buku Referensi
Arief Widarto, author
Universitas Indonesia, 2003
UI - Tesis Membership
Fefriza Ilzar, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2002
UI - Tesis Membership