Marcos Martins and Rodrigo Duran. 2023.
 Program Visualization Tools for Understanding Higher-Order Functions. In <em>Companion Proceedings of the 3rd Brazilian Symposium on Computing Education</em>, April 24, 2023, Evento Online, Brasil. SBC, Porto Alegre, Brasil, 18-19. DOI: <a href="https://doi.org/10.5753/educomp_estendido.2023.229077">https://doi.org/10.5753/educomp_estendido.2023.229077</a>.