WILLEY, Thomas; ROBIDEAUX, Douglas. The National Golf Foundation Top 100 Businesses in Golf: Investigating the Portfolio Returns vs the Market Portfolio. Archives of Business Research, [S. l.], v. 9, n. 4, p. 96–100, 2021. DOI: 10.14738/abr.94.10039. Disponível em: https://scholarpublishing.org/journals/index.php/ABR/article/view/9706. Acesso em: 18 jun. 2026.