Hoehne, Lucélia, Rosecler Ribeiro, Wagner Manica Carlesso, Eduardo Miranda Ethur, e Simone Stülp. 2013. “Physical and Chemical Characterization of Earthworms and Humus Obtained by Vertical Vermicomposting”. Tecno-Lógica 17 (1):60-65. https://doi.org/10.17058/tecnolog.v17i1.3364.