Richard D. Irwin , 1969
Buku Teks
Hailstones, Thomas J., author
South-Western Publishing, 1985
Buku Teks
Eibe Riedel, Gilles Giacca, Christopher Golay, editor
Oxford University Press, 2014
Buku Teks
Sinnakkannu, Jothee, author
Lexis lexis, 2014
Buku Teks
Fowler, Robert Booth, author
Praeger, 1985
Buku Teks