Douglass, Laura Mae
Mosby, 1984
Buku Teks
Adhi Cahyono
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2011
UI - Tesis Open
Scott, John
Spere British Institute of Management, 1984
Buku Teks
Weaver, Patricia C.
Free Press, 1977
Buku Teks
Boyatzis, Richard E.
John Wiley & Sons, 1982
Buku Teks