Álvarez-Pineda, F.; Urrego-Gómez, Y.; Ordóñez-Ordóñez, P.; Torres-Carrión, H. Implementation of Web Accessibility in Accordance With WCAG 2.1: Perceptibility. ings 2026, No. 36, 70-83. https://doi.org/10.17163/ings.n36.2026.06.