Gibson, Charles H., author
PWS-KENT Publishing , 1989
Buku Teks
Gibson, Charles H., author
South-Western, 1992
Buku Teks
Wild, John J., author
McGraw-Hill, Irwin, 2004
Buku Teks
Myer, John N.
Prentice-Hall, 1974
Buku Teks
Lev, Baruch
Prentice-Hall, 1974
Buku Teks