Where can I find the Graduale Romanorum in Latin or Croatian in physical format? I've been looking for the official Graduale Romanorum which sanctions which hymns, chants, etc. are allowed to be performed during Mass.

Unfortunately, I could only find the Latin version in digital format.

Also, if anyone knows a good hymnal in Latin or Croatian or where I can find official documents with texts, it would be much appreciated.

This comment on this article inspired me to look for it.
Check out Benedictine monasteries in your region or other institutes of religious formation, especially for Croatian sources. Then again their is always Amazon.



Graduale Romanum

Addendum:

The Benedictine Order in general and Solemnes Monastery in particular have been asked by Rome to preserve the heritage of Gregorian Chant as the official Sacred Music of the Church in the Latin Rite.