(3JbfjGJ GdHMK GdecGfj hJMdjdGJg(B:(3YQV GdWQGFb (B_(3EYOGO GdCWQhMI GdLZQGajI heQGMd GfLGRgG s - (3GdeXaQ (B,(3eMSf YHO GdUGMH s ((3YeGf (B:s (3OGQ UaGA s, 2007)
(3GdeUGOQ hGdeQGLY (B_267_271 s
Keywords: (3GSGdjH GdHMK s; (3WQb GdHMK s