HIRIOTE, S.; PHUNPHIPHAT, C.; KUNPHONG, P. Cluster Analysis of Retirement Mutual Funds . Thai Journal of Operations Research : TJOR, [S. l.], v. 9, n. 1, p. 67–78, 2021. Disponível em: https://ph02.tci-thaijo.org/index.php/TJOR/article/view/243912. Acesso em: 1 oct. 2026.