«The Sound of Responsibility: Evolution of the Use of Radio Advertising As a Corporate Social Responsibility (CSR) Communication Channel before and After Covid-19. A Significant Increase». Profesional de la información 31, no. 5 (octubre 28, 2022). Accedido marzo 20, 2026. https://revista.profesionaldelainformacion.com/index.php/EPI/article/view/86896.