Mora Rodríguez , Damariz, Paulina Tapia Bolaños, and Ximena García Zambrano. “Cost for Production Orders for the Manufacture of Aluminum Stairs and Their Impact on Price Determination.”. Ecuadorian Science Journal 5, no. 1 (March 31, 2021): 1-6. Accessed April 19, 2024. https://journals.gdeon.org/index.php/esj/article/view/73.