| 1 | |
| Researcher: | Nirupama Devi |
| Guide: | Kalita, B C |
| University: | Gauhati University |
| Language: | English |
| 2 | Some Perishable inventory models with mixture of distributions |
| Researcher: | Nirupama Devi, K |
| Guide: | Srinivasa Rao, K |
| University: | Andhra University |
| Language: | English |
| 3 | |
| Researcher: | Dar, Nirupama Singh |
| Guide: | Sharma, K L |
| University: | Jawaharlal Nehru University |
| Language: | English |