Casey, Edward S., 1939-, author
Spring Publications, 1991
Buku Teks
Royce, James E.
McGraw-Hill, 1961
Buku Teks
MIT Press, 1999
Buku Teks
Warren, Bill, author
Routledge , 1998
Buku Teks
Mensch, James Richard, author
Duquesne University Press, 2005
Buku Teks