Collis, David J., author
McGraw-Hill, 1998
Buku Teks
Grantham, Charles E., author
American Management Association, 2007
eBooks
Collis, David J., author
McGraw-Hill Irwin, 2005
Buku Teks
Davis, Marvin A., author
American Management Association, 2008
eBooks
Watuliu, Winston Tommy, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2005
UI - Tesis (Membership)