UMA RAO, K.; PREMA, V.; SUBRAMANYA, K. N. Plickers: An ICT Tool for Formative Assessment and Feedback. Journal of Engineering Education Transformations, [S. l.], p. 290–295, 2020. DOI: 10.16920/jeet/2020/v33i0/150163. Disponível em: https://journaleet.in/index.php/jeet/article/view/57. Acesso em: 5 dec. 2025.