Vietnamese is the official language, which is when the academic year 2463, Vietnam was a referendum to use the Roman alphabet. Instead of Chinese characters. Written in Vietnamese.
Vietnamese language, which the 2463 academics, Vietnam referendum to spend the Roman alphabet instead of Chinese characters. Writing in the Vietnamese language.
The official language is the language of Viet Nam when the academic circles 2463 (1920) Viet Nam. the referendum will use the Roman alphabet instead of Chinese characters in written language, Viet Nam.