(3ecjaGJ GdZQa h ecjaGJ GdSjGQGJ h GdecjaGJ GdUMQGhjI (B/ s - (3YHO GdeJYGd, CMeOs; (3YHO GdbGOQ, UdGMs ((3GdefUhQI (B:s (3ecJHI LRjQI GdhQO,s, 2000)
Keywords: (3GdJHQjO (B( (3GdGfYGT (B)s; (3Jcjja GdghGGs