(3WQb UjGfI hJQeje GdGKGQ hGdebJfjGJ GdafjI (B/ s - (3YHOGdeYR TGgjfs; (3Rci GScfOQs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1975)
Keywords: (3eUQ GdbOjeIs; (3GdGKGQs; (3JQejes