Vera-Peña, M. Y., and W. L. Rodriguez-Rodriguez. “Effect of PH on the Growth of Three Lactic Acid Bacteria Strains Isolated from Sour Cream”. Universitas Scientiarum, vol. 25, no. 2, Nov. 2020, pp. 341-58, doi:10.11144/Javeriana.SC25-2.eopo.