(3bGfhf VQjHI GdOeZI Qbe (B111 (3dSfI (B1980 (3hdGFMJg GdJfajPjI (B:s (3habkG dBNQ GdJYOjdGJ (B/s - (3eUQ(B.s ((3GdbGgQI (B:s (3GdgjFI GdYGeI dTFhf GdeWGHY GdCejQjI,s, 1988)
Keywords: (3JTQjYGJ hbhGfjfs; (3VQjHI GdOeZI(B.s