JOHNSTON, J.; VERNACCHIA, M. Virtual Button and Graphical Interface System Safety Evaluation using System Theoretic Process Analysis (STPA). Journal of System Safety, [S. l.], v. 56, n. 2, p. 27–36, 2020. DOI: 10.56094/jss.v56i2.21. Disponível em: https://jsystemsafety.com/index.php/jss/article/view/21. Acesso em: 21 apr. 2026.