00448nam a22001457a 4500 17360 17360 181030b xxu||||| |||| 00| 0 eng d 8122434118 TK5103.7 .D37 2013 c.1 Das, J. Review of Digital Communication State of the art in digital signalling, digital switching and data networks J Das 2nd ed. New Delhi New Age 2013 xiv, 563p. lcc BK 0 0 lcc 0 KABU KABU 2018-10-30 3000.00 0 TK5103.7 .D37 2013 c.1 024356 2018-10-30 00:00:00 2018-10-30 BK