| 1 | ||
| Researcher: | Srivastava, Ratna | |
| University: | Banaras Hindu University | |
| Language: | Hindi | |
| 2 | Study of phytotoxic effects of water flowing through industrial waste channles | |
| Researcher: | Saha, Ratna | |
| Guide: | Roy, Malabika | |
| University: | Visva Bharati | |
| 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: | Seetha Ratna Kumari, T | |
| Guide: | Kurup, P A | |
| University: | University of Kerala | |
| Language: | English | |
| Shodhganga | ||
| 5 | ||
| Researcher: | Ratna Babu, G H V | |
| Guide: | Lavania, M L | |
| University: | Govind Ballabh Pant University of Agricultural and Technology | |
| Language: | English | |