Abraham Sinkov books & textbook
Elementary Cryptanalysis (ANNELI LAX NEW MATHEMATICAL LIBRARY)
American Mathematical Society /2009-12-31 Hardcover / 212 Pages
isbn-10: 0883856476 / isbn-13: 9780883856475
Elementary Cryptanalysis: A Mathematical Approach (Mathematical Association of America Textbooks, Series Number 22)
The Mathematical Association of America /1998-08-27 Paperback / 232 Pages
isbn-10: 0883856220 / isbn-13: 9780883856222