1. “Polare Molekeln.”;Debye,1929
2. B. R. Ratna, R. Shashidhar, and K. V. Rao, Proc. Int. Liq. Cryst. Conf., 8th, 1979 p. 137 (1980).
3. “Dielectric Behaviour and Structure,”;Smyth,1955
4. The Dielectric Polarization of Polar Liquids
5. “Theory of Dielectrics.”;Fröhlich,1949