| 1 | |
| Researcher: | Vidyavathi, Addepalli |
| Guide: | Subrahamanyasaatry, C |
| University: | Andhra University |
| Language: | Telugu |
| 2 | |
| Researcher: | Vidyavathi, Addepalli |
| University: | Andhra University |
| Language: | Telugu |
| 3 | Farm size and efficiency in changing agriculture: a case study |
| Researcher: | Vidyavathi Devi, Addepalli |
| University: | Andhra University |
| Language: | English |