| Author | Titles | 1.
| Ismail, Farah Rahim | 2 | 2.
| Ismaili Centre (Londres, Grã-Bretanha) | 2 | 3.
| Ismaïlovitch, Dimitri, 1892-1976 | 25 | 4.
| Isman, Fabio | 1 | 5.
| Isnard, Guy | 1 | 6.
| Isnard, Hildebert | 4 | 7.
| Isnardi, Teófilo | 1 | 8.
| Isobe, Milky | 1 | 9.
| L'Isola | 3 | 10.
| Isola, Maria Catelli | 1 |
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