(3GdZQjH (B/ s - (3cGeh, GdHjQs; (3YGjOI eWQLi GOQjSs ((3HjQhJ (B: s (3GdecJHI GdKbGajI , s, 1990)
Keywords: (3GdGOH GdaQfSis; (3GdbUU GdaQfSjIs; (3GdbUU GdaQfSjI GdeJQLeIs