(3GdJdhK GdHjFj (B/s - (3GdYeQ, eKfi YHO GdQRGbs ((3YeGf, GdCQOf (B:s (3OGQ hGFd,s, 2000)
(3HHdjhLQGajI (B: (3U(B. 289-295.s
Keywords: (3GdJdhKs; (3JdhK GdHjFIs