(3GdLGeY GdaQjO (B:s (3jMJhj Ydi cJH hQSGFd dCFeI GdOYhI GdESdGejI (B/s ((3GdQjGV (B:s (3GdYHjcGf ddWHGYI hGdfTQ ,s, 1988)
(3GdJhMjO (B/s (3JWgjQ GdGYJbGOs (3TQM GdUOhQs (3GdRjGQI (B/s (3GdQO Ydi THgGJ GdeSJZjKjfs (3eMeO Hf YHO GdhgGH(B-s (3GdCejQ GdUfYGfj s (3GHf JjejI(B.s (3GdThcGfjs (3CMeO Hf EHQGgje Hf YjSis
(3Rcj(B.s
Keywords: (3Yde GdcdGes; (3YbjOIs