NORMAN REID. The Triangle Model: The Contribution of the Late Professor Alex H. Johnstone. JSE, [S. l.], v. 2, n. 1, 2023. DOI: 10.30971/jse.v2i1.1703. Disponível em: https://ojs.aiou.edu.pk/index.php/jse/article/view/1703. Acesso em: 27 oct. 2025.