(3GdbhGJ GdeSdMI hOhQgG aj GdJfejI GdhWfjI (B/ s - (3GdeHjVjf, MSf Ydj YhOI s ((3YeGf (B: s [(3ZjQ eYQa(B](3, s, 2000)
Keywords: (3GdbhGJ GdeSdMI(B. s; (3GdJfejI GdEbJUGOjI(B. s; (3GdCQOf(B. s