Stillman, Richard J., author
Wadsworth and Cengage Learning, 2010
Buku Teks
Meyerson, Martin, author
The Free Press, 1964
Buku Teks
Edited by Linda Landesman, Issac B. Weisfuse
Jones and Bartlett Publishers, 2014
Buku Teks
Stein, Harold, author
Harcourt, Brace & World, 1952
Buku Teks
Mawar Kusuma Darina, author
[Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, ], 2014
UI - Makalah dan Kertas Kerja