CHEN, Chun-Ying; CHEN, Chun-Hung; HSU, Ai-Chi. Cost Efficiency Affects Sustainable Operations. International Journal of Economics and Financial Issues, [S. l.], v. 8, n. 1, p. 90–92, 2018. Disponível em: https://mail.econjournals.com/index.php/ijefi/article/view/5956. Acesso em: 27 dec. 2024.