Amanullah, S., M. Alam, R. Subarna, R. Bateen, K. Huque, and A. Sultana. “Feeding <i>Lactobacilli</i> As Probiotic and Proportion of <i>Escherichia coli</i> In the Intestine of Calves”. Bangladesh Veterinarian, vol. 26, no. 1, Mar. 2010, pp. 17-22, doi:10.3329/bvet.v26i1.4627.