Todd, Maria K.
CRC Press, Taylor & Francis Group, 2011
Buku Referensi
edited by Shayne Cox Gad
Wiley-Interscience, 2008
eBooks
Herget, James E., author
Rice University Press, 1990
Buku Referensi
edited by Shayne Cox Gad
Wiley-Interscience, 2008
Buku Teks
edited by Dennis M. Patterson
Blackwell, 1999
Buku Teks