Korean Language Institute
Sidaegosigihwek, 2011
Buku Teks
Seo, Gyeong-Sook
Bakijeong, 2011
Buku Teks
Kim, Jung-sup
Kyung Hee University Press, 2005
Buku Teks
Kyunghee Korean Education Research Group
Darakwon, 2011
Buku Teks
Bak, Yeong-Sun
Goryeodaehaggyochulpanbu, 2010
Buku Teks