Language Plus, 1997
Buku Teks
Young-Mee, Choo...[et.al.]
University of Hawai'i Press, 2000
Buku Teks
Sogang University, 2004
Buku Teks
Edited by Peter H.Lee
Cambridge University Press , 2006
Buku Teks
Lee, Yun-jin
Seoul Communication Books, 2006
Buku Teks