1. Lelang Wangs during the Sixteen Kingdoms Period and Northern Dynasties;Luo,1997
2. The Development of Migration and Kingship in Ancient Northeast Asia:Basing on the Foundation of Lelang County;Huai-Chen;Cheng Kung Journal of Historical Studies,2009
3. The Cambridge Illustrated History of China;Ebrey,2010
4. Timeline of Chinese History;Fang,1980
5. Ancient DNA of Emperor CAO Cao's granduncle matches those of his present descendants: a commentary on present Y chromosomes reveal the ancestry of Emperor CAO Cao of 1800 years ago;Wang;J. Hum. Genet.,2013