D`ancona, Paolo
Leonardo da Vinci
Paris Desclee de Brouwer 1938
 Buku Referensi
Freud, Sigmund, 1856-1939
Leonardo da Vinci : a memoir of his childhood
Routledge Classics , 2001
 Buku Teks
Wallace, Robert
De wereld van Leonardo da Vinci 1452-1519
N.V. Het Parool, 1968
 Buku Referensi
Zollner, Frank
Leonardo da Vinci 1452-1519: volume II the graphic work
Taschen, 2011
 Buku Referensi
Zollner, Frank
Leonardo da Vinci 1452 - 1519: volume I the complete paintings
Taschen, 2011
 Buku Referensi