| 1 | Perfect numbers and some multiplicative arithmetical functions |
| Researcher: | Suryanarayana, D |
| University: | Andhra University |
| Language: | English |
| 2 | |
| Researcher: | Satya Murty, Nivarthi Suryanarayana |
| University: | University of Mumbai |
| Language: | English |
| 3 | |
| Researcher: | Suryanarayana Murty, Saraswatula Venkata Sundara |
| University: | Banaras Hindu University |
| Language: | English |