(3GdTQjYI GdGSdGejI (B:s (3ceUOQ GSGSj ddOSJhQ (B/s - (3YHO GdMejO eJhdis; (3YHO GdMdje eMehOs ((3GdEScfOQjI (B:s (3efTCI GdeYGQa,s, 1975)
(3jTJed Ydi GQLGYGJ HHdjhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdGSdGe hGdSjGSIs; (3GdJTQjYs