(3GdeONd Edi Yde GdCLfI GdhUaj h GdJLQjHj (B/ s - (3cQje, UGdM Hf YHO GdYRjRs ((3LOg (B:s (3OGQ GdeLJeY ddfTQ h GdJhRjY,s, 1990)
Keywords: (3Yde GdCLfIs; (3Yde GdCMjGAs