(3fXQI Gdi GdeQCI hGdQLd aj GdGSdGe (B/ s - (3GdHGdjSGfj , GMeO GdTjN eMeO s ((3HZOGO (B: s (3eWHYI GdYGfj , s, 1985)
Keywords: (3GdGMhGd GdTNUjI s