SHARMA SANJAY. (2016). COMMUNICATION SYSTEMS (ANALOG AND DIGITAL)� (6TH ED.). S K KATARIA AND SONS.
Lua i Stíl Chicago (17ú heag.)SHARMA SANJAY. COMMUNICATION SYSTEMS (ANALOG AND DIGITAL)�. 6TH ED. NEW DELHI: S K KATARIA AND SONS, 2016.
Lua MLA (9ú heag.)SHARMA SANJAY. COMMUNICATION SYSTEMS (ANALOG AND DIGITAL)�. 6TH ED. S K KATARIA AND SONS, 2016.
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