The Effect of the Preceding Graphic Organizer on Learning Attitude to Programming and Problem Solving Ability of Middle School Students . International Conference on Computers in Education, [S. l.], 2010. DOI: 10.58459/icce.2010.263. Disponível em: https://library.apsce.net/index.php/ICCE/article/view/263. Acesso em: 18 sep. 2025.