P. P. GOKULDAS, M. K. TAMULI, N. H. MOHAN, K. BARMAN, and N. R. SAHOO, “A comparative analysis of reproductive performance of different pig breeds under intensive management systems in sub-tropical climate”, Indian J of Anim Sci, vol. 85, no. 9, pp. 1042–1045, Sep. 2015, doi: 10.56093/ijans.v85i9.51753.