Ross, Stephen A., author
McGraw-Hill, 2002
Buku Teks
Oxford University Press, 1993
Buku Referensi
Ross, Stephen A., author
McGraw-Hill , 1999
Buku Teks
Brooks, W. Collin, author
P.S. King & Son, 1939
Buku Teks
Eckstein, Otto, author
Prentice-Hall, 1967
Buku Teks