Niles, Olive S., author
Scott, 1983
Buku Teks
McArthur, Tom (Thomas Burns), author
Oxford University Press, 1983
Buku Teks
Springer, 2016
Buku Teks
Comfort, Jeremy, author
Oxford University Press, 1994
Buku Teks
Walter, Catherine
Cambridge University Press, 1992
Buku Teks