| Author | Titles | | 1.
| Xavier, Isabel | 2 | | 2.
| Xavier, Jayro José | 1 | | 3.
| Xavier, João Pedro | 3 | | 4.
| Xavier, João Pedro, 1961- | 3 | | 5.
| Xavier, Jorge Barreto, 1965- | 17 | | 6.
| Xavier, Jorge Manuel Barreto, 1965- | 0 | | 7.
| Author is: Xavier, Jorge Barreto, 1965- | 17 | | 8.
| Xavier, José | 2 | | 9.
| Xavier, Leonor | 1 | | 10.
| Xavier, Lívio | 1 | | 11.
| Xavier, Luís Lobo | 4 |
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