Sage Publications, 1987
Buku Teks
Morison, Samuel Eliot
Little, Brown, 1955
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