(3LGeY GdJhGQjN (B: s (3JGQjN NdaGA LfcjR NGf ef GhcJGj bGBf Edi JjehQ bGBf (B/ s - (3GdgePGfj, QTjO GdOjf aVd Gddgs; (3GdUjGO, aDGO YHO GdeYWjs ((3HjQhJ (B:s (3OGQ GdfgVI GdYQHjI,s, 1983)
Keywords: (3EjQGfs; (3GdJGQjN GdSjGSjs; (3GdeZhds