Kaushik, R.K., author
SS. Mubaruk and Bross, 1995
Buku Teks
Korean Educational Development Institute
Korean Educational Development Institute, 1998
Buku Teks
Mellor, DH
Routledge, 1995
Buku Teks
Foreign languages Press, 2010
Buku Teks
Moroney, M. J., author
Penguin Book, 1968
Buku Teks