Crowe, Mary, author
MacIntyre Purcell Pub, 2010
Buku Teks
Basheer , 2007
Buku Referensi
Koehler, Robert, author
Seoul Selection, 2009
Buku Teks
written by Koean Cultural and Historical Survey Society ; translated by Jung Ha Yun
Korean, Dolbegae Publishers, 2007
Buku Referensi
Malkani, Vikas, author
Gramedia, 2004
Buku Teks