(3Odjdc GdeUhQ dBaGJ h CeQGV GdfHGJ h WQb GdhbGjI efgG h ecGaMJgG (B/ s - (3GdMSjfj, eMeO CMeOs ((3GdbGgQI (B:s (3ecJHI EHf SjfG ddfTQ,s, 1989)
Keywords: (3GdBaGJ GdRQGYjIs; (3CeQGV GdfHGJs