Sultana, N., Hassan, N., Ershaduzzaman, M., Talukder, M. A. I. and Iqbal, A. (2011) “Effect of Intensive and Semi-intensive Feeding System on Productive and Reproductive Performances of Native Sheep”, Journal of Scientific Research, 3(3), pp. 693–698. doi: 10.3329/jsr.v3i3.7129.