(3eONd Gdi GdOQS GdGOHi GdebGQf (B/ s - (3GMeO Thbi QVhGfs ([S.N] : (3OGQ GdYdhe GdYQHjI , s, 1990)
Keywords: (3GdGOH GdYQHis; (3GdGOH GdebGQfs