SEMBIRING, N.; KRISNA, N. L. Model for Development of a Business Strategy for Renewable Energy Technology Services. International Journal of Energy Economics and Policy, [S. l.], v. 9, n. 6, p. 65–70, 2019. Disponível em: https://econjournals.com/index.php/ijeep/article/view/7951. Acesso em: 3 may. 2024.