| 1 | |
| Researcher: | ratna Kumari |
| Guide: | Joseph, A |
| University: | Andhra University |
| Language: | English |
| 2 | Food problem, foodgrain economy and foodgrain imports of India |
| Researcher: | Ratna Kumari, Bandila |
| Guide: | Leela, PRatnam, C |
| University: | Andhra University |
| Language: | English |
| 3 | Food problem, food grain economy and food grain imports of India |
| Researcher: | Ratna Kumari, Bandila |
| University: | Andhra University |
| Language: | Arabic |
| 4 | |
| Researcher: | Baby Ratna Kumari, T |
| University: | Andhra University |
| Language: | English |
| 5 | |
| Researcher: | Thanikonda, Baby Ratna Kumari |
| University: | Andhra University |
| Language: | English |