References
- Amazon, Available: http://www.amazon.com/
- Sony eBookStore, Available: http://ebookstore.sony.com/
- Google Books, Available: http://ebookstore.sony.com/
- Apple, Available: http://www.apple.com/
- Barnes & Noble, Available: http://www.barnesandnoble.com/
- Borders, Available: http://www.borders.com/
- Penguin Books, Available: http://www.penguin.co.uk/
- 한국출판콘텐츠, Available: http://www.e-kpc.co.kr/
- 한국이퍼브, Available: http://www.k-epub.com/
- 교보문고, Available: http://www.kyobobook.co.kr/
- 북큐브, Available: http://www.bookcuve.co.kr/
- 인터파크, Available: http://www.interpark.co.kr/
- 조선일보, Available: http://www.textore.com/
- KT 쿡북카페, Available: http://bookcafe.qook.co.kr/
- 아이리버, Available: http://www.Book2.co.kr/
- 네오럭스, Available: http://www.Nuut.co.kr)
- 인큐브테크, Available: http://www.cumulus.co.kr/
- 유니닥스, Available: http://www.unidocs.co.kr/
- IMS, Available: http://www.imsproject.org
- IDPF, Available: http://www.idpf.org
- 전자출판물표준화포럼, Available: http://odpf.or.kr
- TTA, Available: http://www.tta..or.kr/