(3GdMbhb GdSjGSjI ddeQCI ai GdESdGe (B/s - (3YHO GdMejO GdThGQHis ((3eUQ (B:s (3efTCI eYQa LdGd MRi hTQcGg,s, 1987)
(3jTJed Ydi EQLGYGJ HHjdhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdeQCI ai GdESdGes