(3CMcGe GdJbGOe aj VhA GdbVGA hGdabg (B:s (3GdbGfhf GdeOfj(B-(3GdbGfhf GdJLGQj(B-(3GdbGfhf GdHMQj(B-(3GdbGfhf GdLfGFj (B/s - (3GdThGQHj, YHO GdMejO eMeOs; (3YKeGf, CSGeIs ((3GdEScfOQjI, eUQ (B:s (3efTCI GdeYGQa,s, 1984)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdCMcGe (B((3bGfhf eQGaYGJ(B)s -- (3eUQs; (3bGfhf GdELQGAGJ GdeOfjI hGdJLGQjIs -- (3eUQs