Angola 1981 Angola Gazettes 1981 2020 2019 2018 2017 2016 2015 2014 2011 2010 2009 2008 2007 2006 2003 2000 1999 1996 1994 1992 1989 1988 1986 1985 1984 1982 1981 1980 1979 1978 1977 1931 1 gazette August 1981 Angola Government Gazette dated 1981-08-14 number 191 (479.3Â KB, PDF)