Breckner, David, author
Prentice-Hall, 1970
Buku Teks
Maynard, Jeff, author
Butterworths, 1972
Buku Teks
Maynard, Jeff, author
Butterworths, 1972
Buku Teks
Wimmert, Robert J., author
Holt, Rinehart and Winston, 1969
Buku Teks
Flores, Ivan, author
Prentice-Hall, 1971
Buku Teks