(3GdJMaX Ydi GdeYGgOGJ GdOhdjI ai GdbGfhf GdOhdi GdYGe hGdTQjYI GdESdGejI (B/s - (3YHOGdZfi eMehOs ((3eUQ (B:s (3OGQ GdEJMGO GdYQHi ddWHGYI,s, 1986)
(3jTJed Ydi EQLGYGJ HHjdhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdeYGgOGJ GdOhdjIs -- (3GdbGfhf GdOhdi ai GdESdGes