| 21 | ||
| Researcher: | Singh, Preeti | |
| Guide: | Singh, Babban | |
| University: | V. B. S. Purvanchal University | |
| Language: | English | |
| Shodhganga | ||
| 22 | Evaluation of marketing of agricultural inputs A case study of Azamgarh district | |
| Researcher: | Singh, Preeti | |
| Guide: | Singh, B K | |
| University: | V. B. S. Purvanchal University | |
| Language: | English | |
| Shodhganga | ||
| 23 | ||
| Researcher: | Singh Preeti | |
| Guide: | Arora Mahesh Kumar | |
| University: | Sant Longowal Institute of Engineering and Technology | |
| Language: | English | |
| Shodhganga | ||
| 24 | Development of a remedial programme in teaching of Hindi at primary school level | |
| Researcher: | Singh, Preeti | |
| Guide: | Srivastava, R P | |
| University: | Jamia Milia Islamia University | |
| Language: | English | |
| Shodhganga | ||
| 25 | Ecotoxicological studies of chromium and cadmium pollution on certain genotypes of crop plants | |
| Researcher: | Singh, Preeti | |
| Guide: | Singh, U K | |
| University: | V. B. S. Purvanchal University | |
| Language: | English | |
| Shodhganga | ||
| 26 | ||
| Researcher: | Singh, Preeti | |
| Guide: | Singh, Rajender | |
| University: | Jiwaji University | |
| Language: | English | |
| Shodhganga | ||
| 27 | ||
| Researcher: | Singh, Preeti | |
| Guide: | Singh, A N | |
| University: | V. B. S. Purvanchal University | |
| Shodhganga | ||
| 28 | ||
| Researcher: | Singh, Preeti Bala | |
| Guide: | Diwedi, Ramayana Prasad | |
| University: | Kurukshetra University | |
| Language: | English | |