(3GdehdO (B: s (3OQGSI ai fMh hJWhQ GddZI GdYQHjI ai GdYUQ GdMOjK (B/ s - (3Mdej Ndjds ((3GdGScfOQjI (B:s (3GdgjFI GdeUQjI GdYGeI ddcJGH,s, 1979)
Keywords: (3eUQs; (3JGQjNs; (3GddZI GdYQHjIs; (3GdaGXs; (3eLeY GddZI GdYQHjIs