(3GdJYdjb Ydi fUhU bGfhf GjLGQ GdGeGcf (B: s (3ai VhA GdJYOjdGJ GdGNjQI h BQGA GdabgGA h GMcGe GdbVGA h GdeHGOF GdJi GQSJgG eMceI GdfbV (B/ s - (3eQYi (B: (3eMeO YHO GdeLjOs ((3GdbGgQI (B: s (3YGde GdcJH ddWHGYI h GdfTQ (B: s, 1983)
(3jTJed Ydi GQLGYGJ HHdjhLQGajIs
Keywords: (3GdGjLGQGJs -- (3bhGfjf h JTQjYGJs