Lee, Hae-yeong, author
Raengijiphelose, 2011
Buku Teks
Son, In-sik, author
The DAily Han Times, 2006
Buku Teks
edited by Sang Yee Cheon
Koryo Taehakkyo Ch'ulp'anbu, 2013
Buku Teks
Benedict, Ruth, author
A Mentor Book, 1958
Buku Teks
Benedict, Ruth, author
Penguin Books , 1947
Buku Teks