Ph. D 的有声读物
内容语言：Vietnamese
- 所有语言
- English
- Vietnamese
- Ancient Greek
- Arabic
- Bisaya/Cebuano
- Bulgarian
- Cantonese Chinese
- Catalan
- Chinese
- Church Slavonic
- Croatian
- Czech
- Danish
- Dholuo/Luo
- Dutch
- Esperanto
- Finnish
- French
- German
- Greek
- Hebrew
- Hungarian
- Indonesian
- Irish
- Italian
- Japanese
- Javanese
- Korean
- Latin
- Latvian
- Luxembourgish
- Macedonian
- Maori
- Middle English
- Multilingual
- Norwegian
- Old English
- Persian/Farsi
- Polish
- Portuguese
- Romanian
- Russian
- Spanish
- Swedish
- Tagalog
- Tamil
- Telugu
- Ukrainian
- Urdu
