Pires, Darlene Ribeiro, and Alexandra Amaro de Lima. “The Logistical Challenges to Implement the Environmental Management System in a Natural Gas Company in the North Region”. International Journal of Advanced Engineering Research and Science 9, no. 9 (September 17, 2022). Accessed August 25, 2024. https://journal-repository.com/index.php/ijaers/article/view/5457.