(3Yde GdSjGSI (B/s - (3OGfcGf ; LGf eGQis; (3eMeO YQH UGUjdGs ((3HjQhJ (B:s (3GdeDSSI GdLGeYjI ddOQGSGJ hGdfTQ hGdJhRjY,s, 1992)
Keywords: (3GdGMRGH GdSjGSjIs