Stein, Clifford. Discrete mathematics for computer scientists / By Clifford Stein, Robert L Drysdale and Kenneth Bogart - 1st ed. - New Delhi : Pearson , 2011. - 525p. ; 23 cm. ISBN: 9788131733523 Subjects--Topical Terms: Cryptography and number theoryReflection on logic and proofProbability Dewey Class. No.: 511.8 / STEC