KYMÄLÄINEN, H.-R.; KUISMA, R.; MÄÄTTÄ, J. Assessment of cleanness of environmental surfaces in cattle barns and piggeries. Agricultural and Food Science, [S. l.], v. 18, n. 3-4, p. 268–282, 2009. DOI: 10.23986/afsci.5955. Disponível em: https://journal.fi/afs/article/view/5955. Acesso em: 24 apr. 2024.