SHEN, Yuan. Analysis of Marketing Strategies for Sports Star Trading Cards. Transactions on Social Science, Education and Humanities Research, London, U.K., v. 11, p. 239–244, 2024. DOI: 10.62051/w1hvze79. Disponível em: https://wepub.org/index.php/TSSEHR/article/view/2598. Acesso em: 17 jun. 2026.