00353nam a22001217a 450000500170000002000230001703500230004003700130006310000230007624500730009926000370017230000220020920180809121032.0  a8184050097c625.00  aB-217684, B-217688  aDPLbENG  aTripathi, Narendra  aMass communication :bConcepts and processes /cby Narendra Tripathi  aNew DelhibReference Pressc2006  av, 279p.c20 cms.