Greene, Graham
William Heinemann, 1948
Buku Teks
Lapp, Ralph E.
Time Incorporated, 1963
Buku Referensi
Lapp, Ralph E.
Time Incorporated, 1963
Buku Teks
Pierce, James B.
Houghton Mifflin, 1970
Buku Teks
Lieberson, Stanley
Yale University Press, 2000
Buku Teks