(3GUhd GdOYGhi GdeOfjI (B: s (3OQGSI Yf cjajI GbGeI GdOYhi GdeOfjI eY GdUjZ GdbGfhfjI GdJWHjbjI, hGdGSJTgGO HGdeHGOF GdbVGFjI GdeSJNdUI ef GMcGe eMceI GdJejjR (B/ s - (3GdcQHGSj, Ydj eMeO GHQGgje, s ((3HZOGO (B[(3GdYQGb(B] : s (3eWHYI GdReGf, (B420 (3g`(B. = 1999.s, 1999)
(3jJVef GQLGYGJ HHdjhLQGajI(B.s
Keywords: (3bGfhf GdGLQGAGJ GdeOfjI hGdJLGQjIs -- (3GdYQGb(B.s; (3fbV GdGMcGes -- (3GdYQGb(B.s