Schwab, Klaus, 1938-, author
Currency, 2017
Buku Teks
Flinn, M.W.
Longmans, 1969
Buku Teks
Ashton, T.S.
Oxford University Press, 1960
Buku Teks
Thompson, Dorothy
Wildwood House, 1984
Buku Teks
Barker, Hannah, author
Oxford University Press, 2017
eBooks