SULLIVAN, J. B. . Energy Services Companies: Where Are International Markets Going? . Strategic Planning for Energy and the Environment, [S. l.], v. 16, n. 4, p. 18–29, 2023. Disponível em: https://journals.riverpublishers.com/index.php/SPEE/article/view/20717. Acesso em: 17 jul. 2026.