(葡萄牙文) * IPHAN - Official Note 存档副本. [2012-01-25]. (原始内容存档于2015-10-19). - The paintings "O lavrador de Café", "Retrato de Suzanne Bloch" as well as the entire collection of MASP are considered Brazilian National Heritage since 1969 due to its importance to the culture of the country.
(葡萄牙文) * IPHAN - Official Note 存档副本. [2012-01-25]. (原始内容存档于2015-10-19). - The paintings "O lavrador de Café", "Retrato de Suzanne Bloch" as well as the entire collection of MASP are considered Brazilian National Heritage since 1969 due to its importance to the culture of the country.