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
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Zollner, Frank
Leonardo da Vinci 1452 - 1519: volume I the complete paintings
Taschen, 2011
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Al-Ahwani, Ahmad Fuad
ابن سينا = Ibn Sina
Dar al-Ma`arif, 1958
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