(3GdGOH GdebGQf (B/ s - (3gfQi RZjHs; (3ZhjGQ, eGQjhS aQfShGs ((3HjQhJ (B: s (3efThQGJ YhjOGf , s, 1988)
Keywords: (3GdGOHs; (3GdGOH GdebGQfs; (3GdGOH GdaQfSi (B- (3JGQjN hfbOs; (3GdGOH GdGfLdjRi GdebGQfs