Castro Porcayo D. PROOF OF PISA 2009 THE READING COMPETITION A DIDACTIC EXPLANATION ON THE POSSIBLE CAUSES OF THE LOW LEVEL OF PERFORMANCE OF MEXICAN STUDENTS IN LA SUBESCALA OF INTEGRATING AND INTERPRETING. TenPed [Internet]. 2015 Oct. 23 [cited 2025 Dec. 23];21:199-213. Available from: https://revistas-new.uam.es/tendenciaspedagogicas/article/view/2033