OCHOA, G. V.; ROJAS, J. P.; AVELLA, J. C. Energy Optimization of Industrial Steam Boiler using Energy Performance Indicator. International Journal of Energy Economics and Policy, [S. l.], v. 9, n. 6, p. 109–117, 2019. Disponível em: https://www.econjournals.com/index.php/ijeep/article/view/8188. Acesso em: 20 apr. 2024.