Spiegel, Murray R.
Schaums outline of theory and problems of calculus of finite differences and differences equations
McGraw-Hill, 1971
 Buku Teks SO
Spiegel, Murray R.
Schaum?s outline of theory and problems of calculus of finite differences and difference equations
McGraw-Hil International, 1981
 Buku Teks
Spiegel, Murray R.
Schaum's outline of theory and problems of calculus of finite differences and difference equations
McGraw-Hill, 1971
 Buku Teks SO
Gear, Charles William, 1935-
Numerical initial value problems in ordinary differential equations / C. William Gear
Prentice-Hall, 1971
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Kelley, Walter G.
Difference equations : an introduction with applications /​ Walter G. Kelley, Allan C. Peterson.
Academic Press, 1991
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