Negrini, Lucio, and Christian Giang. “How Do Pupils Perceive Educational Robotics As a Tool to Improve Their 21st Century Skills?”. Journal of e-Learning and Knowledge Society 15, no. 2 (June 16, 2019). Accessed April 24, 2024. http://je-lks.org/ojs/index.php/Je-LKS_EN/article/view/1135008.