Gardner, Helen, author
Harcourt, Brace and World, 1959
Buku Teks
Silcock, Arnold
Faber and Faber, 1936
Buku Teks
Kempers, August Johan Bernet, author
van der Peet, 1959
Buku Teks
Arnason, H. Harvard, author
Thames & Hudson, 1998
Buku Referensi
Paine, Robert Treat, author
Penguin Books, 1955
Buku Teks