Kritzick, James
Holt, Rinehart and Winston, 1964
Buku Teks
Roberts, Edgar V., author
Prentice-Hall, 1969
Buku Teks
Roberts, Edgar V., author
Prentice-Hall, 1977
Koleksi Publik
Jang, Deok-sun, author
Saemunsa, 2007
Buku Teks
Williams, Harold Herbert, author
Sidgwick & Jackson, 1918
Buku Teks