IJSMI, Editor. Tutorial: Factor analysis revisited – An overview with the help of SPSS, SAS and R packages. International Journal of Statistics and Medical Informatics, [S. l.], v. 3, n. 1, 2017. DOI: 10.3000/ijsmi.v3i1.6. Disponível em: http://ijsmi.com/Journal/index.php/IJSMI/article/view/6. Acesso em: 16 jul. 2026.