Application of Principal Component Regression in Analyzing Factors Affecting Human Development Index. Jurnal Varian, [S. l.], v. 6, n. 2, p. 199–208, 2023. DOI: 10.30812/varian.v6i2.2366. Disponível em: https://journal.universitasbumigora.ac.id/Varian/article/view/2366. Acesso em: 11 oct. 2025.