Klafter, Craig
Blackstone Press limited, 1995
Buku Teks
Tiscione, Kristen Konrad Robbins, author
WEST A Thomson Reuters business, 2009
Buku Teks
Stead, Alan, author
Facet Publishing, 2008
Buku Referensi
Fitzgerald, F Scott
Random House, 1996
Buku Teks
Ikatan Dokter Indonesia , 1988
Buku Teks