Spiegel, Murray R.
Schaum?s outline of theory and problems of calculus of finite differences and difference equations
McGraw-Hil International, 1981
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Spiegel, Murray R.
Schaum's outline of theory and problems of calculus of finite differences and difference equations
McGraw-Hill, 1971
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Saxena, H.C.
Examples in finite differences and numerical analysis / H. C. Saxena
S. Chand & Company Ltd, 1980
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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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Shishkin, Grigory I.
Difference methods for singular pertubation problems
CRC Press, Taylor & Francis Group, 2009
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