^Bắc Giang thế và lực mới trong thế kỷ XXI published Công ty cổ phần thông tin kinh tế đối ngoại 2002 - Page 21 "Bac Giang Town was formerly called Lang Thuong District. After the victory of the war of resistance against the French colonialists, Vietnamese authorities had decided to set up Bac Giang Town. Thuong River running along the town's ..."
^Minh trị Lưu Historical remains & beautiful places of Hanoi and the surrounding area Page 268 2000 "Suối Mơ Relics is in Nghia Phương commune, Lục Ngạn district, 37 km from Bắc Giang town. It is dedicated to God of the soil, Lady Lord of Forestry princess Quế Mỵ Nương, daughter of the 16th Hùng King."
^Cumulative list of organizations described in section 170 Volume 2 - Page 1907 United States. Internal Revenue Service - 2003 "Madison-Bac Giang Sister City Project Inc., Madison, Wi.
^Friends journal - Volume 44 - Page 2 1998 "Following dedication of the peace park, the Madison-Bac Giang Vietnam Sister City Project evolved."