Im, Ji Ryong
Thamchulphansa, 2010
Buku Referensi
Sweetser, Eve
Cambridge University Press, 1994
Buku Teks
Northwestern University Press, 1967
Buku Teks
Choi, Song Wu
Communication Books, 2007
Buku Referensi
Das, Veena
Oxford University Press, 1982
Buku Teks