| 1 | ||
| Researcher: | Kumar, Nirmal | |
| Guide: | Joseph, Mary | |
| University: | Cochin University of Science and Technology | |
| Language: | English | |
| 2 | ||
| Researcher: | Singh, Nirmal | |
| Guide: | Sharma, Bhartendu | |
| University: | Mahatma Jyotiba Phule Rohilkhand University | |
| Language: | English | |
| Shodhganga | ||
| 3 | ||
| Researcher: | Bera, Nirmal Kumar | |
| Guide: | Das, Sujit Kumar | |
| University: | University of North Bengal | |
| Language: | English | |