FILIAN HURTADO, W.; ALVARADO ÁLVAREZ, H.; PEREDA MOUSO, J.; CURBELO RODRÍGUEZ, L.; VÁZQUEZ MONTES DE OCA, R.; PEDRAZA OLIVERA, R. Characterization of Cropping Systems Integrated with Cattle Raising in the Guayas River Basin, Los Rios Province, Ecuador. Revista de Producción Animal, v. 31, n. 1, 17 jun. 2019.