バナト・ブルガリア人の公用語はなんですか？
The Banat Bulgarian language uses its own script, largely based on the Croatian version of the Latin alphabet (Gaj's Latin Alphabet), and preserves many features that are archaic in the language spoken in Bulgaria. The language was codified as early as 1866 and is used in literature and press, which distinguishes it from plain dialects.
Banat Bulgarian