http://www.ideo.com/about/

http://www.strategicbusinessinsights.com/vals/ustypes.shtml

http://www.bcg.com/about_bcg/history/history_1968.aspx

http://business-fundas.com/2010/the-ge-mckinsey-matrix-and-its-limitations-for-business-portfolio-analysis/

http://books.google.com.br/books?id=xzP0ZiqY3VcC&printsec=frontcover&dq=inauthor:%22Aaker%22&hl=pt-BR&sa=X&ei=wDA_UaXeN5C89QT0j4GgCQ&ved=0CDUQ6wEwAQ#v=onepage&q&f=false

http://asq.org/learn-about-quality/cause-analysis-tools/overview/fishbone.html

http://books.google.com.br/books?id=9U1K5LjUOwEC&printsec=frontcover&dq=diffusion+of+innovations&hl=pt-BR&sa=X&ei=gjQ_UcqCKYPI9QS8l4DYDw&sqi=2&ved=0CDAQ6wEwAA#v=onepage&q=diffusion%20of%20innovations&f=false

http://books.google.com.br/books?id=H9ReAijCK8cC&printsec=frontcover&dq=Competitive+Strategy&hl=pt-BR&sa=X&ei=1DQ_UdzYL4TO9QTfkIFo&ved=0CDIQ6AEwAA#v=onepage&q=Competitive%20Strategy&f=false

http://books.google.com.br/books?id=-K_wp74bK3sC&pg=PA181&dq=SWOT+Analysis+Humphrey&hl=pt-BR&sa=X&ei=RDc_UYSqBILa8wS-oIGACw&ved=0CGUQ6AEwCTgK#v=onepage&q=SWOT%20Analysis%20Humphrey&f=false