De França, Jose Antonio, Nathália Alves Carvalho, Pereira Clésia Camilo, and Eduardo Tadeu Vieira. 2021. “The Operational Sustainability of the Firm : The Operational Performance Versus Financial Solvency Binomial - OPFS ”. International Journal for Innovation Education and Research 9 (1): 353-70. https://doi.org/10.31686/ijier.vol9.iss1.2909.