(3GdThQi dG GdOjebQGWjI (B/ s - (3GdfMhj, YOfGf Ydj QVGs ((3GdQjGV (B: s (3OGQ GdfMhj ddfTQ hGdJhRjY, s, 2001)
Keywords: (3GdESdGe(B. s; (3GdThQi(B. s; (3GdOjebQGWjI(B. s