Bibliography

1. The first source of knowledge was Wikipedia, where You can find quite good description of Janggi rules:
   http://en.wikipedia.org/wiki/Janggi
2. Very helpfull was also blog of Mr Antoni: (but it is in Polish only)
   http://szachykoreanskie.bloog.pl/
3. Another source that I found thanks to Mr Antoni was the book: “Introduction to Korean Chess” C.McDade
4. Another source of information was the page:
   http://history.chess.free.fr/changgi.htm
5. I have found also a german book “Schachspiele in Ostasien – Xiangqi, Changgi, Shogi” author Peter Banaschak (link below):
   Schachspiele in Ostasien – Xiangqi, Changgi, Shogi.