Title: Chungguk yŏksachʻaek enŭn itchiman uri kuksachʻaek enŭn ŏmnŭn Chungguk sok Koguryŏ wangguk, Che
Subjects: History, Textbooks, Sources, Study and teaching, Textbook bias
Places: China, Koguryŏ (Kingdom), Korea
People: Xu Liu (887-946)
Time periods: Tang dynasty, 618-907