F. Silva-Calpa, E. Tonguino-Quiroz, and R. Mantilla-Guiza.
" Computational Thinking in the Solving of Mathematical Problems in Elementary Education through Unplugged Computing", in Proceedings of the 26th Workshop on Computing at School, Evento Online, 2020, pp. 151-160, doi: https://doi.org/10.5753/cbie.wie.2020.151.