PUTRA, S. G.; WICAKSONO, A. D.; PRAYITNO, G.; HIEP, N. T. Improving the quality of toll Road services to increase satisfaction level of Pekanbaru – Dumai toll road. Civil and Environmental Science Journal (CIVENSE), Malang, Indonesia, v. 6, n. 1, p. 24–32, 2023. DOI: 10.21776/ub.civense.2023.00601.4. Disponível em: https://civense.ub.ac.id/index.php/civense/article/view/391. Acesso em: 27 apr. 2024.