Sage Publications, 1987
Buku Teks
edited by Sergio Diaz-Brizuets and Sidney Weintraub
Westview Press , 1991
Buku Teks
Wiarda, Howard J.
Westview Press, 1992
Buku Teks
Hanke, Lewis
D. Van Nostrand Company, 1959
Buku Teks
Christie, Agatha, 1890-1976
Gramedia Pustaka Utama, 2018
Buku Teks