Almeyda-Domenech, Camilo, and Paul F. Randel. “Two Levels of Liquid Streptomyces Solubles in Pelleted Concentrate Feeds for Dairy Cows”. The Journal of Agriculture of the University of Puerto Rico, vol. 73, no. 1, Jan. 1989, pp. 1-9, doi:10.46429/jaupr.v73i1.6368.