Bhatia, S. L., author
Khanna Publishers, 1976
Buku Referensi
edited by Sheldon S.L. Chang
John Wiley & Sons, 1983
Buku Referensi
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