(3GdbWGY GdRQGYj aj dHfGf (B:s (3GHQR GdJZjQGJ NdGd GdMQH (B/s - (3OhdI GdaQfLI hYdGbJgG HdGehjjS aj GdCfOdS s ([(3Ohf ecGf(B] :s (3GdaGQGHj ,s, 1985)
Keywords: (3dHfGf s; (3GdRQGYj s; (3GdbWGY s