00684nam a22001937a 4500 120220s xxu|||||r|||| 001 0 eng d 8131805026 9788131805022 22 621.3885 KHU 29023 Khurana, Monika Data Communication System / by Monika Khurana. new Delhi : Laxmi Publications, 2009. 239 p. : ill ; 24 cm. Includes index. 29024 Communication Systems Ele February2012 ddc BB 16493 16493 0 0 ddc 0 0 Alahram MAIN MAIN 1ST 2012-02-20 purchase 57.00 681 0 621.3885 KHU 000026153 2025-07-15 00:00:00 BB