۱- A First Course in Coding Theory , Raymond Hill , 14 MB.
۲- Spectra of Graphs , Andries E. Brouwer & Willem H. Haemers , 1.6 MB.
۳- Coding Theory A First Course , San Ling Chaopingxing , 1.3 MB.
۴-Handbook of Product Graphs 2nd edition , Richard Hammack & Wilfried Imrich & Sandi Klavžar , 2.6 MB.