CHANDRASHEKAR, H. S.; GEETHA KIRAN, A.; UMA, B.; SUNITA, P. Introducing Programming using “Scratch” and “Greenfoot”. Journal of Engineering Education Transformations, [S. l.], 2018. DOI: 10.16920/jeet/2018/v0i0/120957. Disponível em: https://journaleet.in/index.php/jeet/article/view/1873. Acesso em: 5 dec. 2025.