| 1 | Studies on the fixation of atmospheric nitrogen by cultivated leguminous crops of india |
| Researcher: | Sen, Arindranath |
| University: | Panjab University |
| Language: | English |
| 2 | |
| Researcher: | Syed, Riazul Hasan |
| University: | University of Allahabad |
| Language: | English |