Mok, Jeong Soo.
Worin, 2003
Buku Teks
Lee, Yang-Hye
Korea Language Plus, 2010
Buku Teks
Jeon Na-Yeong, Im Ji-Suk, Jeon Ji-in, Kang Eun-Jeong
Yonsei Dehakgyo Chulphanbu, 2011
Buku Teks
Kim Jin-Sik (김진식) ... [and others]
Hanguk Munhwasa, 2012
Buku Teks
Go, Jong-Seok (고종석)
Doseochulpan Kaemagowon, 2012
Buku Teks