Levitt, Joel, author
Industrial Press, Inc., 2009
Buku Teks
edited by Jerry C. Whitaker
CRC Press, 2002
Buku Referensi
Palmer, Doc, author
McGraw-Hill, 1999
Buku Referensi
editor in chief, Lindley R. Higgins
McGraw-Hill, 1988
Buku Referensi
Conover, Herbert S.
McGraw-Hill, 1977
Buku Teks