Mayer, Richard E., author
W.H. Freeman, 1983
Buku Teks
Neimark, Edith D., author
Harcourt Brace Javanovich, 1987
Buku Teks
Fonteyn, Marsha E., author
J.B. Lippincott, 1998
Buku Teks
Gardner, Howard, author
Harvard Business School Press, 2006
Buku Teks
Rosenberg, Vivian M., author
Random House, 1989
Buku Teks