(3GdeZQH GdYQHi(B: s (3ai GdJGQjN GdMOjK hGdeYGUQ GdLRGFQ(B- (3JhfS(B- (3GdeZQH GdGbUi (B/s - (3UdGM GdYbGOs ((3GdbGgQI (B: s (3ecJHI GdGfLdhGdeUQjI , s, 1993)
Keywords: (3GdYUQ GdMOjKs; (3JGQjNs; (3JhfSs; (3GdeZQHs; (3GdLRGFQs; (3GdeZQH GdYQHis