(3GdeQFj hGddGeQFj(B/s - (3HhfJj(B, (3ehQjS ejQdh,s; (3eMeO NVQ,SYGOs; (3OGZQ,GdGH fbhdG,s ((3HZOGO,GdYQGb(B:s (3OGQ GdTDhf GdKbGajI GdYGeI,s, 1987)
(3GdfU HGddZI GdYQHjI eJQLe ef GddZI GdGfcdjRjIs
Keywords: (3adSaIs