Itikawa, Mauricio, and Sandro Breval Santiago. “A Systematic Review on Industry 4.0 Maturity Metricsin the Manaus Free Trade Zone”. International Journal of Advanced Engineering Research and Science 8, no. 1 (January 11, 2021). Accessed July 22, 2024. https://journal-repository.com/index.php/ijaers/article/view/3007.