(3TQM bGfhf GdYbhHGJ GdbSe GdNGU (B:s (3LQGFe GdGYJOGA Ydi GdCTNGU, GdbJd hGdLQM hGdVQH, hEYWGA GdehGO GdVGQI hGdELgGV, hGdGYJOGA Ydi GdYQV (B/s - (3MSGe GdOjf eMeO CMeOs ((3THjf Gdche (B:s (3GdhdGA ddWHY hGdJhRjY ,s, 1990)
. 308-303(3HHdjhLQGajG(B: (3UaMGJ(B.s
(3jTJed Ydi EQLGYGJ HHdjhLQGajIs
Keywords: (3GdLQGFe GdeGSI HGdCTNGUs; (3bGfhf GdYbhHGJ (B- (3GdbSe GdNGUs