Dargan, C.R.
Tata McGraw-Hill , 1994
Buku Teks
Clayton, Albert E., author
Longmans, 1966
Buku Teks
Carlson, A. Bruce, author
Addison-Wesley, 1981
Buku Teks
Korn, Granino A., author
McGraw-Hill, 1965
Buku Teks
Dekker, Adrianus J., author
Prentice-Hall, 1984
Buku Teks