López-Paredes, Héctor. “Occupational Health and Safety Professional Profiles in Construction and Metalworking Companies of Quito - Ecuador”. Economía y Negocios 8, no. 1 (June 30, 2017): 65–72. Accessed July 3, 2024. https://revistas.ute.edu.ec/index.php/economia-y-negocios/article/view/322.