Menegatti Zoca, Samuel, Chad J. Penn, Ciro Antonio Rosolem, Alexandre Ricardo Alves, Leontino Oliveira Neto, and Maximila Miranda Martins. “Coffee Processing Residues As a Soil Potassium Amendment”. International Journal of Recycling of Organic Waste in Agriculture 3, no. 4 (October 25, 2014). Accessed May 7, 2026. https://oiccpress.com/ijrowa/article/view/3115.