Hang, Xing, author
Cambridge University Press, 2015
eBooks
Park, Hyunhee, author
Cambridge University Press, 2012
eBooks
Reischauer, Edwin O., author
Houghton Mifflin, 1960
Buku Teks
Cho, Dong Il, author
Jimoondang, 2006
Buku Teks
Jo, Hyun-sol, author
Munhak waji sengso, 2003
Buku Referensi