Gilman, Leonard, author
John Wiley & Sons, 1976
Buku Teks
Pakin, Sandra, author
Prentice-Hall, 1973
Buku Teks
Helzer, Garry
Little, Brown And Company, 1983
Buku Teks
Sand, Paul A., author
Osborne/McGraw-Hill, 1984
Buku Teks
Alam, S.S., author
Oxford and IBH, 1988
Buku Teks