1-4 of 4 Books
Tanʾgun Chosŏn ŭi silchon
By Kang, Mu-hak.
Tanʾgun sinhwa ŭi sin yŏnʾgu
By Chae-wŏn Kim
Taehan sanggosa
By Yŏn-gyu Chŏng
Tangun legend
By Michael Gregory Stephens