| 1 | Effects of ultraviolet radiation and nitrosoguanidine on nitrogen fixing alga, Nostoc linkia |
| Researcher: | Singh, Dhirendra |
| Guide: | Kumar, H D |
| University: | Banaras Hindu University |
| Language: | English |
| 2 | |
| Researcher: | Sharma, Dhirendra |
| Guide: | Sharma, Surendra |
| University: | Ch Charan Singh University |
| Language: | English |
| 3 | Studies in neogene smaller foraminifera of Little Andaman Island, Bay of Bengal |
| Researcher: | Singh, Dhirendra Narain |
| Guide: | Srinivasan, M S |
| University: | Banaras Hindu University |
| Language: | English |
| 4 | Effects of ultraviolet radiation and nitrosoguanidine on nitrogen-fixing alga Nostoc linckia |
| Researcher: | Sachan, Dhirendra Singh |
| University: | Banaras Hindu University |
| Language: | English |