Gaming argumentation framework (GAF): Pfizer or AstraZeneca Vaccine of The COVID-19 as a case study. Periodicals of Engineering and Natural Sciences, [S. l.], v. 9, n. 4, p. 692–707, 2021. DOI: 10.21533/pen.v9.i4.977. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/977. Acesso em: 18 apr. 2026.