(3bVGjG QFjSjI aj GdacQ GdYQHj GdeYGUQ (B/ s - (3LGSc, JQjahQ Ls ((3Bf BHhQ (B:s (3LGeYI ejJjTZGf,s, 1979)
(3GdcJGH HGddZJjf GdYQHjI h GdEfLdjRjIs
Keywords: (3GddZI GdYQHjIs; (3GdbQGAIs; (3GdHdOGf GdYQHjIs