Ebert, Ronald J., author
Prentice-Hall, 1998
Buku Teks
Straub, Joseph T., author
Kent, 1985
Buku Teks
Monsen, R. Joseph, author
Houghton Mifflin, 1967
Buku Teks
Lasser, J.K. (Jacob Kay), author
McGraw-Hill, 1960
Buku Teks
Brooks, Ian, author
Prentice-Hall, 1997
Buku Teks