Cusumano, Michael A., editor
[, Springer-Verlag], 2012
eBooks
White, Ron
Ziff-Davis, 1993
Buku Teks
Gultom, Edwin Bart
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2003
UI - Tesis (Membership)
Gorsline, G. W.
Prentice-Hall, 1980
Buku Teks
Lewis, T.G. (Theodore Gyle)
Reston Publishing, 1982
Buku Teks