Amorim, Miguel (28 June 2024). "É oficial: o metro chegou a Vila d'Este" [It's official: the metro arrived in Vila d'Este]. Jornal de Noticias (in European Portuguese). Retrieved 11 February 2025.
"Relatório E Contas" [Report and Accounts] (PDF) (in Portuguese). Metro do Porto. 2023. Archived(PDF) from the original on 18 August 2024. Retrieved 18 August 2024.
"Metro em números" [Metro in numbers]. Metro do Porto (in European Portuguese). Archived from the original on 24 September 2024. Retrieved 18 August 2024.
"História" [History] (in European Portuguese). Metro do Porto, SA. Archived from the original on 4 December 2024. Retrieved 4 December 2024.
Trofa, O. Notícias da (31 December 2023). "A linha de Guimarães "nasceu" na Trofa há 140 anos" [The Guimarães line was "born" in Trofa 140 years ago]. O Notícias da Trofa (in European Portuguese). Retrieved 18 August 2024.
"Relatório E Contas" [Report and Accounts] (PDF) (in Portuguese). Metro do Porto. 2023. Archived(PDF) from the original on 18 August 2024. Retrieved 18 August 2024.
"Metro em números" [Metro in numbers]. Metro do Porto (in European Portuguese). Archived from the original on 24 September 2024. Retrieved 18 August 2024.