(3GdLQGFe GdeGdjI hGdJLGQjI (B:s (3LQGFe GdJgQjH GdLeQci(B- (3GdJYGed ai GdfbO GdGLfHi (B- (3LQGFe GdTQcGJ (B- (3LQGFe GdVQGFH (B- (3GdcSH ZjQ GdeTQhY (B- (3LQGFe GdHfhc hGdGFJeGf (B- (3LQGFe JRjja GdYedI (B- (3LQGFe GdGadGS (B- (3LQGFe GdTjcs - (3YHOGdMejO GdThGQHis ((3GdGScfOQjI (B: s (3efTGI GdeYGQa , s, 1989)
Keywords: (3GdbGfhfs; (3GdTjcGJs; (3YbhO GdHjYs; (3bGfhf GdYbhHGJs; (3GdbGfhf GdJLGQis; (3GdbGfhf GdeGdis