| 1 | ||
| Researcher: | Jacob, T A | |
| Guide: | Aravindakumar, C T | |
| University: | Mahatma Gandhi University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Jacob, Stanley A | |
| Guide: | Mohan Das, N | |
| University: | Kerala Agricultural University | |
| Language: | English | |
| 3 | Application of physical methods to the analysis of essential oils  | |
| Researcher: | Jacob, P A | |
| University: | Dr Harisingh Gour Vishwavidyalaya | |
| Language: | English | |
| Shodhganga | ||
| 4 | ||
| Researcher: | Jacob, P A | |
| Guide: | Shanmugam, A | |
| University: | Annamalai University | |