Buchele, Robert B., author
McGraw-Hill, 1977
Buku Teks
Hughes, Owen E., author
England Palgrave Macmillan, 2012
Buku Teks
Ranson, Stewart, author
ST.Martin's Press, 1994
Buku Teks
Gross, Bertram M., author
Collier-Macmillan, 1968
Buku Teks
Rainey, Hal G., author
John Wiley & Sons, 2003
Buku Teks