| 1 | |
| Researcher: | Ranga Rao, D S |
| Guide: | Thyagarajan, G |
| University: | Indian Institute of Technology-Bombay |
| Language: | English |
| 2 | |
| Researcher: | Ranga Rao, D |
| University: | Indian Institute of Technology |
| Language: | English |
| 3 | Studies on the persistence of endosulfan in the environment and its effect on freshwater fish |
| Researcher: | Mohana Ranga Rao, D |
| University: | Acharya Nagarjuna University |
| Language: | English |
| 4 | Trends in transport with particular reference to Visakhapatnam district |
| Researcher: | Pandu Ranga Rao, D |
| University: | Andhra University |
| Language: | English |
| 5 | |
| Researcher: | Pandu Ranga Rao, D |
| University: | Andhra University |
| Language: | English |