Marcel Dekker, Inc, 1990
Buku Teks
Ali Farazmand
CRC press, 2009
Buku Teks
Hughes, Owen E., author
England Palgrave Macmillan, 2012
Buku Teks
Riggs, Fred W., author
University of Hawaii, 1977
Buku Teks
Le Roy, Michael K., author
Thomson Wadsworth, 2007
Buku Teks