(3GdLeGYI GdhWfjI (B: s (3GdYRdI hGdEfOeGL (B/ s - (3GdHTQi, WGQbs ((3GdbGgQI (B: s (3GdeDSSI GdYQHjI GdMOjKI ddWHY h GdfTQ h GdJhRjY, s, 2005)
Keywords: (3GdCMRGH GdSjGSjI(B. s; (3JGQjN eUQ(B. s; (3GdCbHGW(B. s; (3GdESdGe(B. s