Artikel Jurnal
Priestley, J. B. (John Boynton), 1894-1984, author
Harper, 1960
Buku Teks
Cohen, J.M. (John Michael), 1903-1989, author
Penguin Books, 1956
Buku Teks
Keene, Donald, author
Grove Press, 1955
Buku Teks
Keene, Donald, author
J. Murray, 1953
Buku Klasik