(3aj GdeSCdI GddHfGfjI hGdeUjQ GdeSjMj (B/ s - (3CZfGWjhS GdQGHY, s ((3HjQhJ (B: s (3eQcR GdOQGSGJ GdCQKhPcSj GdEfWGcj, s, 1989)
Keywords: (3GdYdhe GdELJeGYjIs; (3dHfGf s -- (3SjGSI h McheIs; (3GdeSjMjhf s -- (3dHfGfs