Purba, M.A. et al. 2020. A study about Protective Effect of Brevibacillus laterosporus texasporus Culture on Broiler Chickens Infected with Salmonella Pullorum. International Journal of Science, Technology & Management. 1, 2 (Jul. 2020), 68–78. DOI:https://doi.org/10.46729/ijstm.v1i2.10.