Tongku Lee
Seoul : Hollym Elizabert, 2007
Buku Teks
Wade, Terence
New York : Oxford University Press, 2002
Buku Referensi
Bloomfield, Leonard
Amsterdam John Benjamins Publishing 1983
Buku Teks
Lyons, John
New York Cambridge University Press 1992,
Buku Teks
Katerinov, Katerin
Guerra, 1989
Buku Teks