Read, Herbert Edward, Sir, author
Praeger , 1959
Buku Teks
Yoo, Yeol-su
Yekyong Publishing Co., 2002
Buku Referensi
Read, Herbert, author
The World Publishing Company, 1962
Buku Teks
Toto Bunka, 1955
Buku Teks
Reed, John, 1901-1981
Longman, 1965
Buku Teks