| 1 | ||
| Researcher: | Jagadamba, G V | |
| Guide: | Vaidehi, B K | |
| University: | Osmania University | |
| Language: | English | |
| 2 | Some studies on PCM systems and voice band data communication in the Calcutta telephone network | |
| Researcher: | Chakrabarti, Samar Kumar | |
| Guide: | Bandyopadhyay, P | |
| University: | University of Calcutta | |
| Language: | English | |
| Shodhganga | ||