Hersey, Paul, author
Pearson, Prentice Hall, 2008
Buku Teks
Robbins, Stephen P., author
Prentice-Hall, 1988
Buku Teks
Umi Yeni Lestari, author
Sekolah Kajian Stratejik dan Global Universitas Indonesia, 2008
UI - Tesis (Open)
Hersey, Paul
Prentice-Hall, 1988
Buku Teks
Hersey, Paul
Prentice-Hall, 1996
Buku Teks