In Sach Giao Khoa Tai Thanh Pho Ha Noi Joint Stock Company Address: Civil Group 60, Dong Anh Town, Dong Anh Town, Dong Anh District, Ha Noi City Enterprise code: 0101493707 Phone: 0248832554 Representative: Nha Xuat Ban Giao Duc Adress: 81 Tran Hung Dao, Hoan Kiem District, Ha Noi City Dong Anh Town, Dong Anh District, Ha Noi CityFounding date: 8 - 6 - 2004