00686nam a2200217 4500 20260806161305.0 EIN-149251 9789395422338 350.00 EN-132783 DBAD 621.382 Ramesh, B. 89773 Communication system/ B.Ramesh... [et.al] Tamil Nadu Shanlax Publication 2023 61,66 T.P.K. Main Road, Vasantha Nagar, Maduri Tamil Nadu 6250003 251p. 24.5c.m. (pb) Jayanthi, E. Author 89774 V. Seedha Devi Author 89775 Jose, A. Anand 89776 ddc EN 621.382 RAM 217256 217256