(3GHQGgje GdSGFM GdQhMi (B/ s - (3efjQ YHOGdfhQs ([S.N] : (3OGQ GdKbGaI GdeSjMjI , s, 1989)
Keywords: (3GdYgO GdbOjes; (3GHQGgje Ydjg GdSdGes