edited by Paul M. Swamidass
American Management Association, 2000
Buku Teks
Vollmann, Thomas E., author
Business One Irwin, 1993
Buku Referensi
Batten, J. D.
D.B. Taraporevala Sons & Co., 1963
Buku Teks
edited by Albert Newgardsen
American Management Association, 1958
Buku Teks
Buffa, Elwood S. (Elwood Spencer), author
John Wiley & Sons, 1975
Buku Teks