Menegatti Zoca, S., J. Penn, C., Antonio Rosolem, C., Ricardo Alves, A., Oliveira Neto, L., & Miranda Martins, M. (2014). Coffee processing residues as a soil potassium amendment. International Journal of Recycling of Organic Waste in Agriculture, 3(4). https://doi.org/10.1007/s40093-014-0078-7