Seung-eun Oh, author
Darakwan, 2009
Buku Teks
O, Song-un, author
Darakwan, 2009
Buku Teks
O, Song-un, author
Darakwan, 2009
Buku Teks
The National Institute of the Korean Language & The International Korean Language Foundation, 2008
Buku Teks
Muhammad Ihsan, author
2015
UI - Makalah dan Kertas Kerja