Richter, Ekkhard-Siegried, author
Edition Leipzig, 1972
Buku Teks
Nawy, Edward G., author
ITS Press, 2010
Buku Teks
Wang, Chu-Kia, author
Harper and Row , 1985
Buku Teks
Nawy, Edward G., author
Prentice-Hall, 2009
Buku Teks
Ferguson, Phil Moss, 1899-, author
John Wiley & Sons, 1988
Buku Teks