Weatherill, Lorna
Routledge, 1996
Buku Teks
Lowe, Peter
Martin's Press , 1969
Buku Teks
Ronald, D. A. B., author
an imprint of Bloomsbury Publishing Plc, 2015
Buku Teks
Massey, Anne, author
Manchester University , 1995
Buku Teks
The Korean Foundation, 1996,
Buku Referensi