(3Mbhb GdGfSGf (B/ s - (3HSjhfj, eMehO TQjas; (3GdObGb, eMeO GdSYjO , hRjQ, YHOGdYXjes ((3HjQhJ(B: s (3OGQ GdYde ddedGjjf,s, 1989)
(3GdeLdO GdQGHY(B: (3efGgL GdJOQjS hGSGdjHg aj GdYGde GdYQHjs
Keywords: (3Mbhb GdGfSGfs