FONSECA VIGOYA, M.; GARCíA MENDOZA, J.; ORJUELA ABRIL, S. Analysis of the Level of Implementation of Programs for the Efficient Use of Energy and Unconventional Sources: Case Study Colombia. International Journal of Energy Economics and Policy, [S. l.], v. 10, n. 5, p. 679–686, 2020. Disponível em: https://www.econjournals.com/index.php/ijeep/article/view/9713. Acesso em: 15 aug. 2022.