K. Oliveira, T. Pontual Falcão, and E. Barbosa.
" A framework for learning programming skills and 21st century skills", in <em>Companion Proceedings of the 11th Brazilian Congress on Computers in Education</em>, Manaus, 2022, pp. 138-143, doi: <a href="https://doi.org/10.5753/cbie_estendido.2022.226726">https://doi.org/10.5753/cbie_estendido.2022.226726</a>.