(3eYLe GdahdcdhQ eY eSQO GfcdjRj YQHj (B/s - (3jhfS, YHO GdMejO s ((3HjQhJ (B:s (3ecJHI dHfGf fGTQhf ,s, 1983)
Keywords: (3GfcdjRj s; (3YQHjs; (3bGehS s; (3eYLe GdahdcdhQs