(3GdGeGQGJ GdYQHjI ai HdGO GdTGe ai GdbQfjf GdMGOi YTQ hGdKGfi YTQ GdejdGOjjf (B/ s - (3eMeO eMeO eQSi GdTjNs ((3GdbGgQI (B: s (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1980)
Keywords: (3GdMQhH GdUdjHjIs; (3GdJGQjN GdGSdGeis; (3GdTGes; (3ShQjG (B- (3JGQjNs; (3GdOhdI GdeQOGSjIs