Tinto Arandes J, Guijarro Cordero AL, Molina de T. ME. Multivalent method in the construction of indicators for sustainable development. Teor. Enfoques. Apl. Cienc. Soc. 2021;13(28):20-30. Accessed October 5, 2026. https://mail.revistas.uclave.org/index.php/teacs/article/view/3213