Nayfeh, Ali Hasan, author
John Wiley & Sons, 1981
Buku Teks
Greenspan, Donald, author
Harper & Row, 1965
Buku Teks
edited by Bert Hubbard
Academic Press, 1971
Buku Teks
Dennis, John E.
Prentice-Hall, 1983
Buku Teks
Brenan, Kathryn Eleda, 1954- , author
Society for Industrial and Applied Mathematics, 1996
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