ROSNELLI, Rosnelli; MILFAYETTY, Sri. The Principals. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 28, n. 2, p. 296–302, 2016. Disponível em: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/5978. Acesso em: 13 oct. 2025.