Bhuiyan, Mahabub Alam, et al. “Effects of Sintering Temperature on Microstructure and Magnetic Properties of NiFe<sub>2< sub>O<sub>4< sub> Prepared from Nano Size Powder of NiO and Fe<sub>2< sub>O<sub>3< Sub>”;. Journal of Bangladesh Academy of Sciences, vol. 34, no. 2, Jan. 2011, pp. 189-95, doi:10.3329/jbas.v34i2.6865.