(3OQGSI aj GUhd GdMeGjI GdbGfhfjI dMbhb GdGfSGf (B/ s - (3GdcHGT, NjQj GMeO, s ((3GdGScfOQjI (B[(3eUQ(B] : s (3GdaJM ddWHGYI hGdfTQ, s, 2006)
(3jJVef GQLGYGJ HHdjhLQGajI(B.s
Keywords: (3Mbhb GdGfSGf (B((3bGfhf Ohdj(B)s; (3Mbhb GdGfSGfs -- (3bhGfjf hJTQjYGJ(B.s