Pre-testing as an Integral Part of a Public Communications Campaign: A case study of the campaign against speeding in Ghana. Journal of Communications, Media and Society (JOCMAS), [S. l.], v. 1, n. 1, p. 31–46, 2009. DOI: 10.63772/jocmas.v1n1.3. Disponível em: https://jocmas.unimac.edu.gh/index.php/jocmas/article/view/5. Acesso em: 11 may. 2025.