![[ICO]](/icons/blank.gif){kind=icon}
![[PARENTDIR]](/icons/back.gif){kind=icon}
![[ ]](/icons/unknown.gif){kind=icon}
| Name | Last modified | Size | Description |
|---|---|---|---|---|
| Parent Directory | - | ||
| Author.php | 2025-08-20 12:18 | 168 | |
| Book.php | 2025-08-20 12:18 | 319 | |
| ISBN.php | 2025-08-20 12:18 | 166 | |
| NonNullAuthor.php | 2025-08-20 12:18 | 439 | |
| NonNullBook.php | 2025-08-20 12:18 | 1.0K | |
| NonNullISBN.php | 2025-08-20 12:18 | 405 | |
| NullAuthor.php | 2025-08-20 12:18 | 189 | |
| NullBook.php | 2025-08-20 12:18 | 421 | |
| NullISBN.php | 2025-08-20 12:18 | 185 | |
| NullableBook.php | 2025-08-20 12:18 | 789 | |