Buring, Daniel
Oxford University Press, 2016
Buku Teks
Park, Mee-jeong
Biggleswade; Turpin, 2013
Buku Teks
Pike, Kenneth L. (Kenneth Lee), 1912-2000
University of Michigan Press, 1945
Buku Teks
Cambridge University Press, 1997
eBooks
Bradford, Barbara
Cambridge University Press, 1988
Buku Teks