NALEPA, Thiago, and Ruy Inacio Neiva de CARVALHO. “BIOMASS AND ESSENTIAL OIL PROCUCTION OF CHAMOMILE CULTIVATED WITH DIFFERENT LEVELS OF POULTRY LITTER”. Scientia Agraria, vol. 8, no. 2, Aug. 2007, pp. 161-7, doi:10.5380/rsa.v8i2.8381.