Phares, Vicky, author
John Wiley & Sons, 2003
Buku Teks
Feldman, Robert Stephen, 1947-, author
McGraw-Hill, 2000
Buku Teks
Feldman, Robert Stephen, 1947-, author
McGraw-Hill, 1999
Buku Teks
Feldman, Robert Stephen, 1947-, author
McGraw-Hill, 2003
Buku Teks
Baron, Robert A., author
Allyn and Bacon, 1987
Buku Teks