| 1 | case study ofbullock and tractor using forms in West Godavari District |
| Researcher: | Vepuru, Abraham |
| Guide: | Parthasarthy, G |
| University: | Andhra University |
| Language: | English |
| 2 | |
| Researcher: | Abraham, P K |
| Guide: | Sankaranarayanan, K C |
| University: | Cochin University of Science and Technology |
| Language: | English |