Meher, M. M., A. Hasan, and M. Afrin. “Field Investigation on Sub-Clinical Mastitis in Cows in Different Areas of Barisal District in Bangladesh”. Turkish Journal of Agriculture - Food Science and Technology, vol. 6, no. 9, Sept. 2018, pp. 1159-62, doi:10.24925/turjaf.v6i9.1159-1162.1957.