Selling Newspaper to Free Readers: Characteristics and Correlates of a New Buying-and-Selling Behaviour. Global Journal of Human-Social Science, [S. l.], v. 17, n. A4, p. 11–20, 2017. Disponível em: https://socialscienceresearch.org/index.php/GJHSS/article/view/2274. Acesso em: 19 feb. 2026.