7Brenda G.Cox; Gregory E.Elltehausen; John D.Wolken,1989,The National Survey of Small Business Finances:Final Methodology Report(RTI/4131-OOF),Prepared by Research Triangle Institute,September1989.
8Price Waterhouse LLP,1996,National Survey of Small Business Finances:Methodology Report,July 24,1996.
9The National Opinion Research Center of the University of Chicago,1999,Report on the Methodology Study Conducted for the Board of Governors of the Federal Reserve System,February,1999.
10Catherine C.Haggerty; Karen H.Grigorian; Rachel Harter; Amy K.Stewart,2001,The 1998 Survey of Small Business Finance:Methodology Report,Submitted by:The National Opinion Research Center,April 2001.
