Choi, Ki-yong, author
Hangukmunhwasa, 2009
Buku Teks
Mok, Chong-so, author
Teukpyolsi : Worin, 2003
Buku Teks
Choi, Seong-wu, 1958-, author
Communication Books, 2007
Buku Referensi
Lee Hye-gyong, Seo Dong-hun, Lee Cheol-uoo, Hang Eons-su
Hangugiminjeongchaekbaljeonjaedan, 2011
Buku Teks
Kim, Jong-rok, author
Park Lee Jeong, 2005
Buku Teks