(3GdSMQ h GdeYLRI (B/ s - (3HdjajQ, ZGi djhfs; (3SeYGf, YjSis ((3GddGPbjI (B:s (3OGQ GdMhGQ ddfTQ h GdJhRjY,s, 1990)
Keywords: (3GdSMQs; (3GdJfLjes