Bending, Tim, author
KITLV Press, 2006
Buku Teks
Byman, Daniel, author
Cambridge University Press, 2007
Buku Teks
Armstrong, David, 1960-, author
Steerforth Press, 2007
Buku Teks
Dayal, Leela Row
Oxford University Press, 1951
Buku Teks
Spreen, Hildegard L
London [etc.] Cumberlege [1948]
Buku Teks