Most modern translations (post-1923) are still under copyright if published after the author’s death + 70 years. However, many Serbian publishers have abandoned their copyrights due to low demand.
Detaljniji rad koji obuhvata i tradicionalne komentare poznate kao "Deset krila", dostupno na ovom linku Ji Đing - Filozofska mašina: Ji Djing Knjiga Promena Pdf
If you are looking for specific PDF versions or existing digital copies for reference, several Serbian/Regional translations are available online: Ji Djing Knjiga Promena Pdf
Uveo je pojam sinhroniciteta upravo kroz proučavanje ove knjige. Ji Djing Knjiga Promena Pdf