St.Martin's Press, 1983
Buku Teks
Alison Alexander, Jarice Hanson, editor
McGraw-Hill/Dushkin, 2001
Buku Teks
M. Iman Usman, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2013
UI - Tugas Akhir
Rice, F. Philip, author
Pearson, 2008
Buku Teks
Degenova, Mary Kay, author
McGraw-Hill, 2008
Buku Teks