O`Keefe, Richard A., author
MIT Press, 1990
Buku Teks
Edited by Leon S. Sterling
Camberidge University Press , 1990
Buku Teks
Ross, Peter, author
Addison-Wesley, 1989
Buku Teks
Maier, David, author
The Benjamin Cumming Pub., 1988
Buku Teks
Gibbins, Peter, author
Clarendon Press, 1988
Buku Teks