Coleman, Rodney, author
George Allen & Unwin, 1974
Buku Teks
Ash, Robert B., author
Academic Press, 1975
Buku Teks
Narayan Bhat, U., author
John Wiley & Sons, 1972
Buku Teks
Wetzell, A.D., author
McGraw-Hill, 1981
Buku Teks
Bhattacharya, Rabi N., author
Society for Industrial and Applied Mathematics, 2009
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