edited by D. W. Barron
John Wiley & Sons, 1981
Buku Teks
Price, David, author
Prentice-Hall, 1984
Buku Teks
Wood, Steve, author
McGraw-Hill, 1988
Buku Teks
Sand, Paul A., author
Osborne/McGraw-Hill, 1984
Buku Teks
Rohl, J.S. (Jeffrey Soden), 1938-2003, author
Cambridge University, 1980
Buku Teks