Franzoi, Stephen L.
McGraw-Hill, Higher Education, 2009
Buku Teks
Myers, David G.
McGrow-Hill , 1987
Buku Teks
Raven, Bertram H.
John Wiley & Sons, 1983
Buku Teks
Myers, David G.
McGraw-Hill, 1988
Buku Teks
Sargent, S. W. Stansfeld
The Ronald Press, 1966
Buku Teks