2002 britannica book of the year
Chicago: Encyclopedia Britanica, 2002,
 Buku Referensi
Loehrer, Patrick J.
The year book of oncology
Elsevier, 2005
 Buku Referensi
Britanica book of the year 2000
Chicago : encyclopaedia Britanica Inc, 2000,
 Buku Referensi
Britanica book of the year 1999
Chicago : encyclopaedia Britanica Inc, 1999,
 Buku Referensi
Year Book of oncology 2005
Elsiver, 2005,
 Buku Referensi