Rage, Louis J.
Scranton, Penn., International Textbook
Buku Teks
Schonberger, Richard John
N.Y. The Free Press, 1986
Buku Teks
Schonberger, Richard John
The Free Press , 1982
Buku Teks
Dilworth, James B., 1939-
McGraw-Hill, 1992
Buku Teks
Jonsson, Patrik
McGraw-Hill, 2009
Buku Teks