So, Sang-gyu, author
Sinwon Puraim, 2006
Buku Referensi
Kim, Jong-rok, author
Park Lee Jeong, 2005
Buku Teks
Yi, Son-i, 1967-, author
Hangugmunhwasa, 2011
Buku Teks
Pak, Nam-il, author
Seohaeunjib, 2006
Buku Referensi
Choe, Kyong-bong, 1965-, author
Chaek kwa Hamkke, 2006
Buku Referensi