Marín Valencia, Carlos A., and Olga H. Piñeros Mora. “Psychological Harassment in the Work (mobbing), Analysis in Colombian Service Companies. A Risk Factor to Be Controlled”. Revista Colombiana De Salud Ocupacional, vol. 6, no. 3, Sept. 2016, pp. 89-94, https://doi.org/10.18041/2322-634X/rc_salud_ocupa.3.2016.4927.