Barone, E. P., F. A. M. Silva, and M. V. Ferraz. “USE OF SEWAGE SLUDGE AND PALM HEARTH RESIDUE OF Lantana Camara SEEDLINGS PRODUCTION”. Brazilian Journal of Biosystems Engineering, vol. 12, no. 2, June 2018, pp. 132-43, doi:10.18011/bioeng2018v12n2p132-143.