(3bVGjG GdJNda h GdJfejI aj GdYGde GdKGdK (B: s (3aj GdefgL (B/ s - (3GdHGHG, WdGds ((3HjQhJ (B:s (3OGQ GdWdjYI ddWHGYI h GdfTQ,s, 1986)
Keywords: (3GdOhd GdfGejIs; (3GdEbJUGOs; (3GdJNWjWs