(3haj GdUdGI UMI hhbGjI (B/s - (3YdhGf, aGQS SYjOs (3eDda,s ((3LOI(B- (3GdSYhOjI (B:s (3OGQ GdeLJeY ddfTQ hGdJhRjY,s, 1987)
Keywords: (3GdUdGI (B((3ESdGe(B)s; (3GdYHGOGJ (B((3abg ESdGej(B)s