HERRERA COELLO, N.; BARCELÓ MARTÍN, Y.; GARCÍA RODRÍGUEZ, A. Study of the good nutritional conditions for the production of biological fertilizer to leave of Azotobacter. Centro Azúcar Journal, [S. l.], v. 35, n. 2, 2008. Disponível em: http://centroazucar.uclv.edu.cu/index.php/centro_azucar/article/view/503. Acesso em: 8 jul. 2025.