Marín Castillo, M.J. 2022. 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. 24, 1 (Apr. 2022), 1–25. DOI:https://doi.org/10.16925/2382-4921.2022.01.02.