edited by H. Igor Ansoff
Penguin, 1969
Buku Teks
Farmer, Richard N., author
Wadsworth, 1969
Buku Teks
Harvey, Donald F., author
Charles E. Merrill, 1982
Buku Teks
McNichols, Thomas J., author
McGraw-Hill, 1972
Buku Teks
edited by Merwin M. Hargrove, Ike H. Harrison and Eugene L. Swearingen
Irwin, 1966
Buku Teks