[compiled by] John A. Pearce II, Richard B. Robinson, Jr.
McGraw-Hill, 1987
Buku Teks
Hampton, David R., compiler
McGraw-Hill, 1986
Buku Teks
edited by Harry W. Karn, B. von Haller Gilmer
McGraw-Hill, 1962
Buku Teks
edited Max D. Richards and William A. Nielander
South-Western Publishing, 1958
Buku Teks
edited by H. Igor Ansoff
Penguin, 1969
Buku Teks