==External links==* Fieldwork on folk music of Nguồn minority in Minh Hóa district of Quảng Bình province* Lesser Known Languages of Northern Vietnam map (Nguồn is #17)* Nguon people group of Laos
* Fieldwork on folk music of Nguồn minority in Minh Hóa district of Quảng Bình province* Lesser Known Languages of Northern Vietnam map (нгуонский под номером 17)