| Verfasser | Häufigkeit |
| Imam, Abubakar |
22 |
| East, Rupert Moultrie |
7 |
| Imam, Alhaji Abubakar |
4 |
| Abubakar Adam Ibrahim 1979- |
3 |
| Abubakar, Ismaila Rimi |
2 |
| Abd-Alhameed, Raed |
1 |
| Abd-Alhameed, Raed A. |
1 |
| Abubakar, Ibrahim Abdul |
1 |
| Abubakar, Irfan 1967- |
1 |
| Abubakar, Isa Sadeeq |
1 |
| Adetunji, Charles Oluwaseun |
1 |
| Alves, Fátima |
1 |
| Aresta, Michele 1940- |
1 |
| Bakar, Abubakar D. |
1 |
| Ekundayo, Emmanuel Olufemi |
1 |
| Elfergani, Issa |
1 |
| Gidado, Abubakar |
1 |
| Glick, Peter |
1 |
| Gumi, Abubakar Mahmud 1922-1992 |
1 |
| Hussaini, Abubakar Sadiq |
1 |