Alba Rosa Pupo Kairuz, Dionisio Vitalio Ponce Ruiz, Gonzalo Favián Viteri Pita, Samuel Bustillo Mena. PESTEL analysis of environment state responsibility in Ecuador. Neutrosophic Sets Syst. 2020;34:70-78. Accessed January 5, 2025. https://fs.unm.edu/nss8/index.php/111/article/view/3966