(3eTGQb GdCfhGQ Ydi UMGM GdCKGQ (B/ s - (3YjGV, CHh GdaVd YjGV Hf ehSis ((3GdOGQ GdHjVGA (B:s (3hRGQI GdTDhf GdESdGejI,s, 1983)
Keywords: (3GdESdGes; (3GdMjK GdTQjas; (3GdeYGLes