Англо-русский универсальный дополнительный практический словарь И. Мостицкого
DAI SON
геогр.вьетн.Дай Сон
This place is situated in Giang, Quang Nam-Da Nang, Vietnam, its geographical coordinates are 15° 45' 0" North, 107° 50' 0" East and its original name (with diacritics) is Dai Son.