(3GdefGXQI GdcHQi Hjf GdTjN GdOGYjI CMeO OjOGJ hGdOcJhQ GdbS CfjS ThQhT GdeHTQ GdeSjMj (B/s - (3OjOGJ , CMeO s; (3GdUafGhj, QeVGfs ((3GdbGgQI (B:s (3GdeNJGQ GdESdGej ,s, 1991)
Keywords: (3YjSi (B((3Ydjg GdSdGe(B)s; (3TQhT, CfjS(B.s; (3GdESdGe hGdeSjMjIs; (3GdeSjMjIs