The SGI-Brazil literacy program helping people to help themselves
 Artikel Jurnal
Mahoney, Tom
The great merchants : America's foremost retail institutions and the people who made them great
Harper & Row, 1966
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Science in Brazil: an overview
Brazilian Academy of Science , 1999
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Brazil, portrait of half a continent
edited by T. Lynn Smith and Alexander Marchant
Dryden Press, 1951
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Brazil's modern architecture
edited by Elisabetta Andreoli and Adrian Forty
Phaidon, 2004
 Buku Teks SO