Axelsson, O., author
Society for Industrial and Applied Mathematics, 2001
eBooks
Bracewell, Ronald N., author
McGraw-Hill, 2000
Buku Teks
Keller, Herbert B.
Blaisdell Publ. Comp., 1968
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Folland, Gerald B., author
Wadsworth & Brooks/Cole Advanced Books & Software, 1992
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Nagle, R. Kent
Addison-Wesley, 1993
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