SANDOPART, Dewa Putu Yohanes Agata L. The Influence of Cristiano Ronaldo’s Individual Record Achievements on Sponsor Firms’ Abnormal Stock Returns: A Case Study of Nike and Herbalife. Journal of Economics and Management, [S. l.], v. 1, n. 3, p. 163–174, 2023. DOI: 10.70716/ecoma.v1i3.499. Disponível em: https://ejournal.publine.or.id/index.php/ecoma/article/view/499. Acesso em: 23 sep. 2026.