Matilla, K., Marca-Francés, G. e Oliveira, A. 2014. Audit Typologies used by Communication Public Relations Directors and Agencies: a comparative analysis, Spain - ECM. Comunicação e Sociedade. 26, (Dez. 2014), 260–274. DOI:https://doi.org/10.17231/comsoc.26(2014).2038.