Anderson, John D.
McGraw-Hill, 1999
Buku Teks
Fielding, John P.
Cambridge University Press, 1999
Buku Teks
Kuchemann, Dietrich, 1911-1976
Pergamon Press, 1985
Buku Teks
Comrie, Bernard, 1947-
Cambridge University Press, 1976
Buku Teks SO
Comrie, Bernard, 1947-
Cambridge University Press, 1976
Buku Teks SO