Clark, John R., author
Lewis Publishers, 1996
Buku Referensi
James A. Tompkins, Dale A. Harmelink [editors]
McGraw-Hill, 1994
Buku Referensi
Evensky, Harold R., author
Irwin Professional Publishing, 1997
Buku Referensi
Nokes, Sebastian, author
Pearson Education, 2007
Buku Teks
edited by Muriel Albers Bittel, Lester Robert Bittel and Jackson Eugene Ramsey
Grolier International, 1995
Buku Referensi