Marín Castillo MJ. The playful game and the didactic software as a pedagogical strategy to improve the reading-writing processes, related to the confusion of the letters B, b and D, d, in students of the second grade of the John F. Kennedy school, Zarzal Municipality. Rastros rostros [Internet]. 2022 Apr. 18 [cited 2026 Jul. 6];24(1):1-25. Available from: https://revistas.ucc.edu.co/index.php/ra/article/view/4140