Hogg, Michael A., 1954-
London, 1988
Buku Teks
Carr, Stuart C.
John Wiley and Sons Australasia , 2003
Buku Teks
Sidanius, Jim
Cambridge Uiversity Press, 1999
Buku Teks
Baron, Robert A.
Pearson, 2009
Buku Teks
Franzoi, Stephen L.
McGraw-Hill, Higher Education, 2009
Buku Teks