| 1 | |
| Researcher: | Chatterjee, Ratna |
| Guide: | Thakur, Pandit Anantlal |
| University: | Kameshwara SINGH DARBHANGHA SANkrit University |
| Language: | Sanskrit |
| 2 | |
| Researcher: | Srivastava, Ratna |
| University: | Banaras Hindu University |
| Language: | Hindi |
| 3 | Imagination in modern philosophy: A study in Hume, Kant, Ryle, Croce and Sartre |
| Researcher: | Ray, Ratna |
| University: | University of Calcutta |
| Language: | English |
| 4 | |
| Researcher: | Deb, Ratna |
| Guide: | Shukla, J P |
| University: | Rani Durgavati Vishwavidyalaya |
| Language: | Hindi |
| 5 | |
| Researcher: | Sharma, Ratna Dutta |
| Guide: | Mukhopadhyay, P K |
| University: | Jadavpur University |
| Language: | English |