Jones, Milton B., and João L. Quagliato. “Response of Four Tropical Legumes and Alfafa to Varying Levels of Sulfur”. Pesquisa Agropecuaria Brasileira 5, no. 1 (April 15, 2014): 359–363. Accessed November 13, 2025. https://apct.sede.embrapa.br/pab/article/view/17821.