Kim Kabsoo, Korean Culture and Information Service,
Majalah, Jurnal, Buletin
Son, Doe Jun, author
Language Plus, 2009
Buku Teks
Yoo Jae-woong director, Korean Overseas Service,
Majalah, Jurnal, Buletin
The Seas of Korea, {s.a}
Majalah, Jurnal, Buletin
The Korea Foundation, 2003
Majalah, Jurnal, Buletin