| 41 | ||
| Researcher: | Ramana, K V V | |
| University: | Andhra University | |
| Language: | English | |
| 42 | ||
| Researcher: | Ram Nohar Singh | |
| University: | Banaras Hindu University | |
| Language: | English | |
| 43 | ||
| Researcher: | Rastogi, R G | |
| University: | Gujarat University | |
| Language: | English | |
| 44 | ||
| Researcher: | Ray, Rabindranath | |
| University: | University of Calcutta | |
| Language: | English | |
| 45 | Some general and special features of the ionospheric regions | |
| Researcher: | Saha, Arunkumar | |
| University: | University of Calcutta | |
| Language: | English | |
| 46 | ||
| Researcher: | Sanyasi Rao, A | |
| University: | Andhra University | |
| Language: | English | |
| 47 | ||
| Researcher: | Satyanarayana Rao, D | |
| University: | Andhra University | |
| Language: | English | |
| 48 | ||
| Researcher: | Shirke, J S | |
| University: | Gujarat University | |
| Language: | English | |
| 49 | ||
| Researcher: | Sivaram, B M | |
| University: | Andhra University | |
| Language: | English | |
| 50 | distribution of electrons in the ionosphere from vertical soundings | |
| Researcher: | Sreenivasan, Ranga S | |
| University: | Gujarat University | |
| Language: | English | |
| Shodhganga | ||
| 51 | ||
| Researcher: | Srirama Rao, M | |
| University: | Andhra University | |
| Language: | English | |
| 52 | ||
| Researcher: | Subramanyam, C V | |
| University: | University Of Delhi | |
| Language: | English | |
| 53 | Study of ion and electron concentration and their temperature in the F region of the ionosphere | |
| Researcher: | Tolpadi, S Krishna Raja | |
| University: | Banaras Hindu University | |
| Language: | English | |
| 54 | ||
| Researcher: | Toshniwal, G R | |
| University: | University of Allahabad | |
| Language: | English | |
| 55 | ||
| Researcher: | Tuhi Ram | |
| University: | University Of Delhi | |
| Language: | English | |
| 56 | Some studies on ionosphere with a high precision ionosphere sounding appratus | |
| Researcher: | Verma, Jai Krishna Das | |
| University: | University of Calcutta | |
| Language: | English | |
| 57 | ||
| Researcher: | Datta, Gopa | |
| Guide: | Kotadia, K M | |
| University: | Gujarat University | |
| Language: | English | |
| Shodhganga | ||
| 58 | On the study of certain characterstics of the topside Ionosphere | |
| Researcher: | Prabhakara Rao, M | |
| University: | Andhra University | |
| Language: | English | |
| 59 | ||
| Researcher: | Siva Ram, B M | |
| University: | Andhra University | |
| Language: | English | |
| 60 | ||
| Researcher: | Madhusudhana Rao, D N | |
| University: | Andhra University | |
| Language: | English | |