Heck, Ronald H., author
Routledge, 2009
Buku Teks
John C. Vickerman, editor
John Wiley & Sons, 2008
Buku Teks
Bartholomew, David J., author
John Wiley & Sons, 1979
Buku Teks
Bajpai, A.C., author
John Wiley & Sons, 1980
Buku Teks
Rendall, F. J., author
McGraw-Hill, 1983
Buku Teks