Barclay, Glen St. John, 1930-, author
Oxford University Press, 1985
Buku Teks
Mathews, John Mabry
Appleton-Century Company, 1938
Buku Teks
Coates, Benjamin Allen, author
Oxford University Press, 2016
eBooks
Random House, 1965
Buku Teks
Oxford University Press, 1951
Buku Teks