KURNIATI, Intan; SURYA, Edy. Student. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 33, n. 2, p. 91–98, 2017. Disponível em: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/7337. Acesso em: 17 sep. 2025.