1. D.R. Gaskell, inIntroduction to Metallurgical Thermodynamics, 2nd ed., 443, McGraw-Hill, New York (1981).
2. O. Kubaschewski and C.B. Alcock,Metallurgical Thermochemistry, 5 th ed., Pergamon Press, Oxford (1977).
3. JANAF Thermochemical Tables, 2nd ed., National Bureau of Standards (1971).
4. I. Barin,Thermochemical Properties of Inorganic Substances, Springer-Verlag, Berlin (1973).
5. G. Harshé and S. Venkatachalam,J. Metals, 36(10), 34–36 (1984).