Goetsch, David L., author
Prentice-Hall, 2000
Buku Teks
Lee Harrison, editor in chief
McGraw-Hill, 1995
Buku Referensi
Wooside, Gayle, author
McGraw-Hill, 1998
Buku Referensi
edited by Lee Harrison
McGraw-Hill, 1997
Buku Referensi
Reese, Charles D., author
CRC Press, 2009
Buku Referensi