Garrosa, Eva, et al. “Assesment and Prediction of Work Engagement in a Health Volun-Teers Sample: The Role of Sense of Coherence and Cognitive Reap-Praisal”. Anales De Psicología Annals of Psychology, vol. 30, no. 2, Apr. 2014, pp. 530-4, doi:10.6018/analesps.30.2.148701.