DE OLIVEIRA, Alex Martins. Gamification as a Concrete Strategy for Teaching in a Vocational Education Setting. International Journal for Innovation Education and Research, Dhaka, Bangladesh, v. 6, n. 6, p. 76–86, 2018. DOI: 10.31686/ijier.vol6.iss6.1061. Disponível em: https://scholarsjournal.net/index.php/ijier/article/view/1061. Acesso em: 27 jul. 2025.