(3GdhGaj aj TQM GdbGfhf GdOSJhQj (B:s (3fXQjI GdOhdI (B/s - (3ahRj,ChUOjb s ((3GdLRGFQ (B:s (3OjhGf GdeWHhYGJ GdLGeYjI ,s, 1993)
Keywords: (3GdbGfhf GdOSJhQj s; (3GdhGajs