Yoshido, Yasuo
Gakken, 1976
Buku Teks
Nara, Hiroshi, 1951-, author
University of Hawai Press, 2003
Buku Teks
The National Institute of the Korean Language & The International Korean Language Foundation, 2008
Buku Teks
Verbruggen, Katja, author
Coutinho, 2013
Buku Teks
Okky Marisya, author
Fakultas Pascasarjana Universitas Indonesia, 2014
UI - Tesis (Membership)