(3OQGSGJ aj GdCOjGf GdjghOjI hGdfUQGfjI (B/s - (3GdNda, SYhO Hf YHO GdYRjR Nda,s 1378 (3gLQjG(B-s ((3GdeOjfI GdefhQI(B:s (3ecJHI GdYdhe hGdMce,s, 2000)
Keywords: (3GdOjGfGJ GdebGQfIs; (3GdeSjMjI hGdjghOjIs