Veillard Farias, Pedro Igor, Estevão Freire, Armando Lucas Cherem da Cunha, and Adelaide Maria de Souza Antunes. “The Strategic Diagnosis of the Potassium Fertilizer Industry in Brazil”. Journal of the Geological Survey of Brazil 4, no. 2 (August 11, 2021). Accessed February 7, 2023. https://jgsb.cprm.gov.br/index.php/journal/article/view/143.