EVANS, Kristian Paul. An Overview of the Pingo Audience Response System in Undergraduate Mathematics and Statistics Teaching. MSOR Connections, [S. l.], v. 17, n. 1, p. 25–31, 2018. DOI: 10.21100/msor.v17i1.828. Disponível em: https://journals.gre.ac.uk/index.php/msor/article/view/828. Acesso em: 12 nov. 2025.