| Verfasser | Häufigkeit |
| Issa, Maria Claudia Almeida |
8 |
| Tamura, Bhertha |
8 |
| Issa, Tomayess 1965- |
7 |
| Kommers, Piet A. M. 1951- |
6 |
| Isaías, Pedro |
5 |
| Pliev, Issa A. 1903-1979 |
5 |
| Aït Belize, Issa |
4 |
| Issa, Abdullahi A. |
4 |
| Woungang, Isaac |
4 |
| Awad, Ahmed |
3 |
| Boulos, Issa 1968- |
3 |
| Chit, Adel Issa |
3 |
| Isaias, Pedro |
3 |
| Issa, Abdelmoneim I. |
3 |
| Issa, Ahmed Embaby Ali |
3 |
| Issa-Salwe, Abdisalam M. |
3 |
| Traoré, Issa |
3 |
| Abdel-Razaq, Issa M. |
2 |
| Abu Serriya, Shahd |
2 |
| Al-Issa, Ihsan |
2 |