1. A. Srivastva, P. Singh, V.G. Gunjikar, A.P.B. Sinha,Thermochim. Acta, 86 (1985) 77.
2. B.S. Randhawa, Sandeep Kaur, P.S. Bassi,Indian J. Chem., 28A (1989) 463.
3. P.S. Bassi, B.S. Randhawa, Sandeep Kaur, Proc. 5th Int. Conf. on Ferrites, 1989, p. 67.
4. P.S. Bassi, B.S. Randhawa, Sandeep Kaur,Indian J. Chem., 31A (1992) 596.
5. Ferrite Materials, (Eds by B. Viswanathan, V.R.K. Murthy) Narosa Publ. House, New Delhi, 1990, p. 82.