Berry, George Ricker
Chicago, Fallet Publishing, 1962
Buku Referensi
Bowra, C. M.
A Mentor Book, 1957
Buku Teks
Warner, Rex, 1905-1986
The New American Library, 1958
Buku Teks
Hamilton, Edith
W.W. Norton, 1942
Buku Teks
Hamilton, Edith
W.W. Norton, 1942
Buku Teks