(3GdeNOQGJ hHGA GdTYhH hSQWGf GdYbhd (B/ s - (3aDGO Ydi eNjeQs ([S.N] : (3GdeDSSI GdYQHjI GdMOjKI , s, 1988)
Keywords: (3GdGSdGes; (3GdeNOQGJs; (3GdbQGfs