Carole A. Campbell, author
Cambridge University Press, 1999
eBooks
Ramo, Simon, author
McGraw-Hill, 1983
Buku Teks
Sethi, S. Prakash, author
Prentice-Hall, 1974
Buku Teks
Joseph Kristanto, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2023
UI - Tugas Akhir
Mockler, Robert J., author
Harper & Row, 1975
Buku Teks