Shepherd, John, author
Pitman, 1993
Buku Teks
Shepherd, John, author
Pitman, 1973
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