Gómez Paulino , Altagracia, Wanda Marina Román-Santana, and Judith Martínez-Alonzo. 2026. “Cognitive Fatigue in Students During Extended School Days: Modeling the Threshold of Sustained Learning ”. MENTOR Revista De investigación Educativa Y Deportiva 5 (14):285-97. https://doi.org/10.56200/mentor.v5i14.12853.