Gupta , S. (1981). Electronics communications systems: A textbook for electronics engineering students. Khanna pub.
Chicago-čujuhus (17. p.)Gupta , Sanjeeva. Electronics Communications Systems: A Textbook for Electronics Engineering Students. Delhi: Khanna pub, 1981.
MLA-čujuhus (9. p.)Gupta , Sanjeeva. Electronics Communications Systems: A Textbook for Electronics Engineering Students. Khanna pub, 1981.
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