Pijunsu hangugo = 비즈니스 한국어 = Business Korean
Yonse Taehakkyo Hangugo Haktang pyon
Yonsei University Press, 2009
 Buku Teks
Ko, Yong-gun
Pyojun jungse kugo munbomnon
Jipmoondang, 2010
 Buku Teks
Kim, Sel-ong
28-cha ro irun muncha hyongmyong : hunmin chongu
Aiseum, 2007
 Buku Teks
Kang, Sang-gyu
Ch'onjamun, ku ppuri wa Tongyanghakchok sayu = Thousand Character Classic, its roots and Eastern archaeological grounds
Omunhaksa, 2010
 Buku Teks
Ono wa sahoe kurigo munhwa
Kwon kyong-gun
Dosco Unulphan bak-i-jeong, 2009
 Buku Teks