Gantmacher, F.
Mir, 1970
Buku Teks
Kittel, Charles, author
McGraw-Hill , 1981
Buku Teks
Bowler, M.C., author
Pergamon Press, 1982
Buku Teks
Moore, E. Neal, author
John Wiley & Sons, 1983
Buku Teks
Goldstein, Herbert, author
Addison-Wesley, 1962
Buku Teks