Bartholomew, David J., author
John Wiley & Sons, 1979
Buku Teks
Vajda, S.
John Wiley & Sons, 1978
Buku Teks
Rendall, F. J., author
McGraw-Hill, 1983
Buku Teks
Stoodley, K.D.C., author
John Wiley & Sons, 1980
Buku Teks
Mason, Robert D. author
McGraw-Hill , 1999
Buku Teks