(3GdJYGhf GdOhdj decGaMI GdLQjeI hGdeNOQGJ (B/s - (3YKeGf, CMeO MSf eMeOs ((3GdNQWhe (B:s (3eLdS hRQGA GdOGNdjI GdYQH, GdCeGfI GdYGeI,s, 1999)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3ecGaMI GdeNOQGJ (B((3bGfhf Ohdj(B)s; (3ecGaMI GdLQjeI (B((3bGfhf Ohdj(B)s