Nickels, William G.
Understanding business
McGraw-Hill, 2008
 Buku Teks
Nickels, William G.
Understanding business / William G. Nickels, James M. McHugh, Susan M. McHugh
McGraw-Hill , 1999
 Buku Teks SO
McNulty, James E.
Some economic aspects of business organization
University of Pennsylvania Press, 1964
 Buku Teks SO
Hicks, Herbert G.
Modern business management : a systems and environmental approach
McGraw-Hill Kogakusha, 1974
 Buku Teks
Hanke, John E.
Understanding business statistics/ John E. Hanke
Illinois Irwin, 1994
 Buku Teks SO