(3eONd Gdi GdUMGaI LhdI ai bGYI GdJMQjQ (B/ s - (3JjdhQ Qhfs; (3MeOi YHGSs; (3QGi Jjd djhfGQOs ([S.N] : (3GdOGQ GdOhdjI ddfTQ hGdJhRjY , s, 1990)
Keywords: (3GdUMGaIs; (3JMQjQs; (3MQjI GdUMGaIs; (3GdGNdGb GdUMajIs; (3efGbTGJs