The Stability of the Regional Economic System Based on the Innovative Development of the Petrochemical Cluster. Academic Journal of Interdisciplinary Studies, [S. l.], v. 8, n. 4, p. 140, 2019. Disponível em: https://www.richtmann.org/journal/index.php/ajis/article/view/10618.. Acesso em: 1 may. 2024.