(3HdGT SjGSI (B/ s - (3GdfTGTjHj, fGUQ GdOjf, s ((3dfOf (B[(3GfLdJQG(B] : s (3HjJ GdMceI, (B422 (3g`(B. = 2002.s, 2002)
(3jJVef edGMb(B.s
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B173-176.s
Keywords: (3GdYdhe GdSjGSjIs -- (3adSaI(B.s