Castillo Cárdenas, E.M., Bravo Morocho, V.D., Abarca Pérez, E.P., Sánchez Carrión, E.F. y Montúfar Paz, P.A. 2018. Design and manufacture of protective elements to prevent accidents in the agricultural machinery of Ecuador, two cases of study in automotive elements. Ciencia Digital. 2, 3 (jul. 2018), 187-202. DOI:https://doi.org/10.33262/cienciadigital.v2i3.146.