John Redmon
Blackwell Science, 1999
Buku Teks
Tyler G. Hicks, editor ; S. David Hicks, coordinating editor
McGraw-Hill , 2007
Buku Referensi
Williams, Alan
Kaplan Education, 2005
Buku Teks
Ettouney, Mohammed M.
CRC Pres, 2012
Buku Teks
Schodek, Daniel L.
MIT Press, 1988
Buku Teks