Previous COSALFA's . . COSALFA 39 - Asunción, Paraguay - May 10-11, 2012 . 4a COSALFA EXTRAORDINARY - Rio de Janeiro - November 29-30, 2011.. . COSALFA 38 - Recife, Brasil - March 31 and April 01, 2011. . FINAL REPORTS of the COSALFA's of 1973-2010