Lawrence, Paul R.
Addison-Wesley, 1969
Buku Teks
Deegan, Arthur X., author
Aspen Systems Corp., 1982
Buku Teks
edited by Albert Newgardsen
American Management Association, 1959
Buku Teks
Carter, W. Nick, author
ADB, 1991
Buku Teks
Champion, John M.
Richard D. Irwin, 1985
Buku Teks