Quantitative research about the level of knowledge of universal design for learning in high school teachers from liceo bicentenario Llay Llay during the first semester of 2020. ROE [Internet]. 2022 Jun. 28 [cited 2026 Oct. 5];35(68):22-45. Available from: https://revistasdp.upla.cl/index.php/roe/article/view/1156