(3GdeHGMK GdLfGFjI aj GdEeGQGJ GdYQHjI GdeJMOI hGdeYhbGJ GdJj JYhb CYeGdgG (B/s - (3GdONGf, YHO Gddg eHGQcs ((3GdTGQbI, GdEeGQGJ GdYQHjI GdeJMOI (B:s (3GdbjGOI GdYGeI dTQWI GdTGQbI, eQcR GdHMhK hGdOQGSGJ,s, 1999)
(3HHdjhLQGajI (B: (3U(B. 43-46.s
Keywords: (3GdHMK GdLfGFjs -- (3GdEeGQGJ GdYQHjI GdeJMOIs; (3GdbGfhf GdLfGFjs -- (3GdEeGQGJ GdYQHjI GdeJMOIs