621.382
U65S
           Upadhayaya, Rajeev Ranjan (Ed)
               Sanchar madhyamon ke liye vigyan katha \ Rajeev Ranjan Upadhayaya - Faizabad (U.P.) : Bharatiya Vigyan Katha Lekhan Samiti, 2000.
               160p.
                ISBN: 81-86126-12-0

140767
                Subjects: Communication in science; Telecommunication-Social aspects.