1. Alves, H., & Galan-Ladero, M. (2019). Theoretical background: Introduction to social marketing. In M. Galan-Ladero & H. Alves (Eds.), Case studies on social marketing. A global perspective. Springer.
2. Alves, H., Galan-Ladero, M., & Rivera, R. (2021). Theoretical background: Social marketing and quality of life. In M. Galan-Ladero & R. Rivera (Eds.), Applied social marketing and quality of life. Applying quality of life research series. Springer.
3. Andreasen, A. R. (1994). Social marketing: Its definition and domain. Journal of Public Policy & Marketing, 13(1), 108–114.
4. Armstrong, G., & Kotler, P. (2011). Introducción al marketing (3rd ed.). Pearson-Prentice Hall.
5. ASHA - American Speech-Language-Hearing Association. (2020). Social communication definition. https://www.asha.org/public/speech/development/social-communication/