Ordoñez Sánchez, Y. C., Rodríguez Acosta, C., & Rodríguez Suárez, L. (2017). Determination of optimal conditions for obtaining phosphate fertilizer from cuban phosphoric rock. Ingeniería Y Competitividad, 19(2), 131–142. https://doi.org/10.25100/iyc.v19i2.5300