Compostos perfluorados (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Compostos perfluorados" in Portuguese language version.

refsWebsite

Global rank Portuguese rank

7^th place

14^th place

882^nd place

1,359^th place

epa.gov (Global: 882^nd place; Portuguese: 1,359^th place)

Guo Z, Liu X, Krebs KA (March 2009). «Perfluorocarboxylic Acid Content in 116 Articles of Commerce» (PDF). United States Environmental Protection Agency. p. 1

nytimes.com (Global: 7^th place; Portuguese: 14^th place)

Lee, Jennifer 8. (15 de abril de 2003). «E.P.A. Orders Companies to Examine Effects of Chemicals». The New York Times. Consultado em 15 de maio de 2009