Linebarger, Paul Myron Anthony, 1913-1966
York D van Nostrand, 1954
Buku Teks
edited by Stephen K. Bailey
United States Information Agency, 1973
Buku Teks
Quigley, Harold S.
University of Minnesota Press, 1956
Buku Teks
McNelly, Theodore
Houghton Mifflin, 1972
Buku Teks
penyunting, Abdul Rashid Moten
Cengage Learning, 2008
Buku Teks