(3GdJaGhV(B/s - (3LQejf MRjf SYOs; (3UOjb Yajajs ((3eUQ(B:s (3GdgjFI GdeUQjI GdYGeI(B,s, 1987)
Keywords: (3bGfhf Ohdj YGes; (3GdeYGgOGJ h GdGJaGbGJs