(3GdbhGYO aj GdabI GdGSdGej(B/s - (3GdMfHdj,GHj GdaQL YHOGdQMef Hf QLHs; (3SYO,YHOGdQRGbs ((3eUQ(B:s (3ecJHI GdcdjGJ GdGRgQjI,s, 1972)
Keywords: (3GdabI GdGSdGejs