(3Ydhe GdHGHdjjf (B/ s - (3Qhaf , eQZQjJ s; (3MHi , jhSa s ((3HZOGO (B: s (3OGQ GdQTjO ddfTQ , s, 1980)
Keywords: (3GdYQGb GdbOje (B- (3JGQjN s