Necmettin Erbakan ( 1926-2011 ) was the leader of several of the parties , the National Order Party ( Milli Nizam Partisi , 1970-1971 ) , the National Salvation Party ( Milli Selamet Partisi , 1972-1981 ) , and the Welfare Party ( Refah Partisi , 1983-1998 ) ; he also became a member of the Felicity Party ( Saadet Partisi , 2003-2011 ) .