Slonim, Marc, author
Collier Books, 1962
Buku Teks
Riga, Liliana, 1962-, author
Cambridge University Press, 2012
Buku Teks
Kollmann, Nancy Shields, author
Oxford University Press, 2017
eBooks
Emerson, Rupert, author
Harvard Univ. Press, 1960
Buku Teks
Gregory, James S., author
Penguin Books, 1946
Buku Teks