(3OQGSGJ aj GdecJHGJ h GdeYdheGJ (B/ s - (3TQa GdOjf, YHO GdJhGHs ((3GdchjJ (B:s (3PGJ GdSdGSd,s, 1983)
Keywords: (3Yde GdecJHGJs; (3Yde GdeYdheGJs