(3Yde GdEdcJQhf h ZRh GdaVGA (B/ s - (3GdecJH GdYGdej ddHMhKs ((3HjQhJ (B:s (3GdecJH GdYGdej ddWHGYI h GdfTQ,s, 1984)
Keywords: (3GdgfOSI GdEdcJQhfjIs; (3Gdchfs; (3Yde GdaVGAs