Tran Huynh Minh Chi, author
Thammasat University, 2017
Artikel Jurnal
Chaeryun, 2010
Buku Teks
Pak Yu-hui...[and others]
Kyengaang, 2007
Buku Referensi
Choi, In-ho, author
Hanobook, 2006
Buku Referensi
Pak, Nam-il, author
Seohaeunjib, 2006
Buku Referensi