González Maya Bogado, J., Valdez Hug, P. and Edésio Jungles, A. 2009. Training on site for the versatility of the workers and verification of its effects on civil construction. Revista Ingeniería de Construcción. 24, 3 (Dec. 2009), 285–309. DOI:https://doi.org/10.4067/S0718-50732009000300006.