- Traditional Chinese Character(HanT):
自願書
- Simplified Chinese Character(HanS):
自愿书
- Bopomofo(Mandarin Phonetic Symbols): ㄗˋ ㄩㄢˋ ㄕㄨ (ㄗㄩㄕ)
- Bopomofo(Zhuyin Keyboard Input/IME): "y4m04gj " (y4m04gj)
- (ASCII) Hanyu Pinyin: "ziyuanshu" "Zi4Yuan4Shu1" "Zi4 Yuan4 Shu1" (ZYS)
- (Latin) Hànyǔ Pīnyīn: ZìYuànShū [ Zì Yuàn Shū ]
- (英文翻譯) English Translation: "voluntary letter"
- (西語翻譯) Traducción Español: "carta voluntaria"
- (日文翻譯) 日本語翻訳: "自発的な手紙"