Discrete Math  

  1. Discrete Mathematics and its Applications, by K. H. Rosen, published by McGraw-Hill (3rd edition or later).
  2. An Introduction to Discrete Mathematics, by S. Roman, published by HBJ.
  3. How To Solve It: A New Aspect of Mathematical Method, by G. Polya.
  4. Skiena, S. Implementing Discrete Mathematics: Combinatorics and Graph Theory with Mathematica. Reading, MA: Addison-Wesley, p. 85, 1990. 

Graph Theory

  1. Biggs, N. L. Algebraic Graph Theory, 2nd ed. Cambridge, England: Cambridge University Press, 1993.
  2. Cvetkovic, D.; Doob, M.; and Sachs, H. Spectra of Graphs. New York: Academic Press, 1980. 
  3. Bollobas, Graph Theory: An Introductory Course 
  4. Bondy and Murty, Graph Theory With Applications 
  5. Golumbic, Algorithmic Graph Theory and Perfect Graphs     
  6. Bollobas, Random Graphs 
  7. Palmer, Graphical Evolution 
  8. Spencer, Ten Lectures on the Probabilistic Method 

Combinatorics

  1. Bogart, Introductory Combinatorics, Second Edition
  2. A. Tucker, Applied Combinatorics, published by Wiley & Sons.
  3. Richard A. Brualdi, "Introductory combinatorics", North-Holland Publishing Co., New York, 1992. 
  4. Alan Slomson, "An introduction to combinatorics", Chapman and Hall, Ltd., London, 1991. 
  5. two-volume "Handbook of Combinatorics", edited by R. L. Graham, M. Grötschel and L. Lovász, Elsevier Science B.V., Amsterdam; MIT Press, Cambridge, MA, 1995. 
  6. "Combinatorial theory", by Marshall Hall, Jr. John Wiley & Sons, Inc., New York, 1986. 
  7. "A course in combinatorics", J.H. van Lint and R.M. Wilson, Cambridge University Press, Cambridge, 1992.
  8. "Combinatorial methods in discrete mathematics", by Vladimir N. Sachkov, Encyclopedia of Mathematics and its Applications, 55. Cambridge University Press, Cambridge, 1996. 
  9. "Ramsey theory", by Graham, Ronald L.; Rothschild, Bruce L.; Spencer, Joel H.; John Wiley & Sons, Inc.,
    New York, 1990.
  10. Liu, Introduction to Combinatorial Mathematics 
  11. Riordan, Combinatorial Mathematics 
  12. Stanley, Enumerative Combinatorics 
  13. Aigner, Combinatorial Theory 
  14. Crapo and Rota, On the Foundations of Combinatorial Theory: Combinatorial Geometries 
  15. Oxley, Matroid Theory 
  16. Welsh, Matroid Theory 

Coding Theory

  1. Berlekamp, Algebraic Coding Theory 
  2. Peterson and Weldon, Error-Correcting codes 
  3. Pless, Intorduction to the Theory of Error-Correcting Codes 
  4. Sloane and MacWilliams, The Theory of Error Correcting Codes 
  5. Van Lint, Coding Theory
  6. Steven Roman, Coding and information theory, New York : Springer-Verlag, c1992.