Drucker, Peter F. (Peter Ferdinand), 1909-2005, author
Truman Talley Books/Plume, 1992
Buku Teks
Chattell, Alf
Macmillan, 1995
Buku Teks
editors by Gisela M. von Dran; Jennifer Cargill
The Haworth Press, Inc., 1993
Buku Teks
Nona Fairuz Khairunnisa, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2015
UI - Makalah dan Kertas Kerja
Fink, Stephen L., author
Irwin, 1983
Buku Teks