ARORA, H. D.; NAITHANI, A. Effectiveness of Logarithmic Entropy Measures for Pythagorean Fuzzy Sets in diseases related to Post COVID Implications under TOPSIS Approach. International Journal of Intelligent Systems and Applications in Engineering, [S. l.], v. 9, n. 4, p. 178–183, 2021. DOI: 10.18201/ijisae.2021473637. Disponível em: https://www.ijisae.org/index.php/IJISAE/article/view/1268. Acesso em: 20 sep. 2025.