edited by Korean National Commission for UNESCO
Hollym, 2004
Buku Referensi
Artikel Jurnal
Rossiter, A.P. (Arthur Percival), 1957-, author
Hutchinson's University Library, 1950
Buku Teks
Pak, Pyong-son, author
Jimoondang, 2003
Buku Teks
Kim, Il Sung, author
Foreign Languages Publishing House, 2012
Buku Teks