Strum, Robert D., author
Prentice-Hall, 1968
Buku Teks
Barrett, Richard, author
Society for Industrial and Applied Mathematics, 1994
eBooks
Hochstadt, Harry, author
John Wiley & Sons, 1973
Buku Teks
Agnew, Ralph Palmer, author
McGraw-Hill, 1160
Buku Teks
Blanchard, Paul, author
Brooks/Cole, 1996
Buku Teks