Dau Tu Va Ho Tro Xuat Ban LTD Address: Zoom 204B2, Khu, Ngoc Khanh Town, Ngoc Khanh Ward, Ba Dinh District, Ha Noi City Enterprise code: 0101268229 Phone: 0248318159 Representative: Hoang Thanh Thuy Adress: Civil Group 2, Cau Thia Ward, Nghia Lo Town, Yen Bai Province Ngoc Khanh Ward, Ba Dinh District, Ha Noi CityFounding date: 9 - 8 - 2002