CHENGULA, Duwa Hamisi. Study on Performance of Road Signs and Markings along TANZAM Highway in Mbeya Region, Tanzania. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 39, n. 1, p. 34–50, 2018. Disponível em: https://gssrr.org/JournalOfBasicAndApplied/article/view/8995. Acesso em: 1 oct. 2025.