Miranda, Ana R. L., Luis A. P. L. Nunes, Mara L. J. Oliveira, Wanderley J. Melo, and Ademir S. F. Araujo. “Short Communication. Growth and Nodulation of Cowpea After 5 Years of Consecutive Composted Tannery Sludge Amendment”. Spanish Journal of Agricultural Research 12, no. 4 (October 27, 2014): 1175-1179. Accessed May 3, 2024. https://sjar.revistas.csic.es/index.php/sjar/article/view/6282.