| 1 | ||
| Researcher: | Irulappan, T | |
| Guide: | Alakasan, S | |
| University: | Madurai Kamraj University | |
| Language: | English | |
| Shodhganga | ||
| 2 | A study of TEC variations over indian subcontinent and development of dual shell model for gagan | |
| Researcher: | Irulappan, Madaswamy | |
| Guide: | Talukdar, P H | |
| University: | Gauhati University | |
| Language: | English | |
| Shodhganga | ||
| 3 | ||
| Researcher: | Irulappan, I | |
| Guide: | Venkatachalam, A | |
| University: | Madurai Kamraj University | |
| Language: | English | |
| Shodhganga | ||
| 4 | Dialect differences and social stratification in a Tamil Nadu village | |
| Researcher: | Irulappan, K M | |
| Guide: | Karunakaran, K | |
| University: | Annamalai University | |
| Language: | English | |