"Linha 18 vai gerar 1000 empregos diretos" [Line 18 will generate 1,000 direct jobs]. Diário do Grande ABC website (in Portuguese). January 30, 2014. Retrieved March 11, 2014.
Ribeiro, Bruno (February 3, 2012). "Governo quer terceirizar o monotrilho do ABC" [Government wants to outsource ABC monorail]. O Estado de S. Paulo (in Portuguese). p. C8. Retrieved March 15, 2014.
de Siqueira, Ethevaldo Mello (November 21, 1968). "Passageiros, o metro já vai partir" [Passengers, the metro will depart]. O Estado de S. Paulo (in Portuguese). p. 90. Retrieved March 12, 2014.
Brancatelli, Rodrigo; Cavaleiro, Carolina; Müller, Marcos (March 19, 2012). "O monotrilho é uma boa ou má opção para SP?" [Is monorail a good or bad option for São Paulo?]. O Estado de S. Paulo (in Portuguese). p. C6. Retrieved March 14, 2014.
"About Us". São Paulo Metro website. Retrieved March 12, 2014.
"Estudo de Impacto Ambiental – Linha 18" [Environmental impact assessment – Line 18] (PDF). São Paulo Metro website (in Portuguese). May 15, 2012. p. 1. Retrieved March 17, 2014.
"PITU Presentations". Metropolitan Transportation Secretary website. August 9, 2009. Archived from the original on November 21, 2013. Retrieved March 14, 2014.
"PITU 2025"(PDF). São Paulo Secretariat of Metropolitan Transportation (in Portuguese). December 2006. p. 196. Archived from the original(PDF) on September 24, 2015. Retrieved March 17, 2014.
"PITU Presentations". Metropolitan Transportation Secretary website. August 9, 2009. Archived from the original on November 21, 2013. Retrieved March 14, 2014.
"PITU 2025"(PDF). São Paulo Secretariat of Metropolitan Transportation (in Portuguese). December 2006. p. 196. Archived from the original(PDF) on September 24, 2015. Retrieved March 17, 2014.
"Scomi"(PDF). Archived from the original on January 25, 2015. Retrieved April 15, 2015.