Pellegrini, Debora da Cruz Payao, et al. “Application of a Good Manufacturing Practices Checklist and Enumeration of Total Coliform in Swine Feed Mills”. Semina: Ciências Agrárias, vol. 34, no. 6Supl2, Dec. 2013, pp. 3767-76, doi:10.5433/1679-0359.2013v34n6Supl2p3767.