(3ehShYI GdCYeGd GdafjI aj GdecJHGJ h eQGcR GdeYdheGJ (B/ s - (3YhOI, eMeO ecGhjs ((3GdbGgQI (B:s (3OGQ GdcJGH GdeUQj,s, 1998)
Keywords: (3GdJUfja (B((3ecJHGJ(B)s; (3GdagQSIs; (3Yde GdecJHGJs