So, Sang Jun., author
Sin won Pheraim, 2008
Buku Teks
Lee, Ki-mun, author
Seoul Doosan Dong a, 2003
Buku Referensi
Baek, Mun-sik, author
Pakijung, 2010
Buku Teks
Kim Chang-sop, author
T'aehaksa, 2008
Buku Teks
Lee, Yang Hye, author
Language Plus, 2009
Buku Teks