Heydebrand, Wolf V.
Prentice Hall Inc., 1973
Buku Teks
editors, David Hunkeler, Kerstin Lichtenvort, Gerald Rebitzer
CRC Press, 2008
Buku Teks
Curran, Mary Ann
McGraw-Hill, 1996
Buku Teks
Nijkamp, Peter
North-Holland Publishing, 1977
Buku Teks
Martin, William E., 1951-2012
Joaawy-Bass, 2012
Buku Teks