(3aUhd ef GdUMGaI GdGOHjI (B/ s - (3GMeO MSjf GdWeGhis ((3GdbGgQI (B: s (3OGQ GdaQLGfi ,s, 1989)
Keywords: (3eUQs; (3OhQjGJs; (3GdUMajhf GdeUQjhfs; (3GdUMGaI hGdGOHs; (3GMeO MGaX YhVs; (3GdcSfOQg GdNhQis; (3GfWhf GdLejds