Comparative study of the academic success in the subject of Chemistry I at Universidad Estatal a Distancia (UNED) and the formation of students in Costa Rican secondary education. CAES [Internet]. 2018 Nov. 30 [cited 2026 Jul. 30];9(2):257-75. Available from: https://revistas.uned.ac.cr/index.php/revistacalidad/article/view/2239