“¿CÓMO ENTRENAR CON EFECTIVIDAD EL INGRESO A LA EDUCACIÓN SUPERIOR EN LA ASIGNATURA MATEMÁTICA? HOW TO TRAIN EFFECTIVELY THE ENROLLMENT TO HIGHER EDUCATION IN MATHEMATIC SUBJECT?” (2018) Opuntia Brava, 1(2), pp. 1–6. Available at: https://opuntiabrava.ult.edu.cu/index.php/opuntiabrava/article/view/511 (Accessed: 7 November 2026).