Samuels, D. (2004). From Socialism to Social Democracy: Party Organization and the Transformation of the Workers』 Party in Brazil. Comparative Political Studies, 37(9), 999–1024. https://doi.org/10.1177/0010414004268856 (頁面存檔備份,存於互聯網檔案館)
Francisco Luiz Corsi; José Marangoni Camargo; Agnaldo dos Santos; Rosângela de Lima Vieira (編). Economia e Sociedade: o Brasil e a América Latina na conjuntura de crise do capitalismo global. Editora Oficina Universitária. 2014.
Gomercindo Rodrigues (編). Walking the Forest with Chico Mendes: Struggle for Justice in the Amazon. University of Texas Press. 2009 [2023-01-16]. ISBN 9780292774544. (原始內容存檔於2022-10-07). Later, as the military regime waned, he was one of the national founders of the Workers' Party (PT), personally allying with the urban union leader, now president of Brazil, Luiz Inacio Lula da Silva. He, Lula, and the PT in turn allied themselves with the cause of democratic socialism around the world.
John Ashley Soames Grenville (編). A History of the World from the 20th to the 21st Century. Psychology Press. 2010: 702 [2023-01-16]. ISBN 9780415289559. (原始內容存檔於2022-10-06). Lula da Silva set out to show that contemporary 'liberal socialism' can work with the market and capitalism for the benefit of all the people, while promoting public serviccs.
Lula, Brazil's popular ex-president, battles for 2022 political comeback. France 24. 12 June 2021 [21 January 2022]. (原始內容存檔於2023-01-27). Upon his return to Brazil, and ahead of an upcoming trip to the United States, Lula will continue to make full use of the electoral strategy that won him the presidency in 2002: Talking to a variety of people, and negotiating with and rallying political forces beyond his Workers』 Party (PT), particularly from the centre of the political spectrum.
Becker, Fernanda; David, Anthony. Os impasses do "lulismo". Brasil de Fato. 3 January 2013 [8 October 2018]. (原始內容存檔於27 September 2013) (Portuguese). 引文格式1維護:未識別語文類型 (link)
Keinert, Fábio Cardoso. Os sentidos do lulismo: reforma gradual e pacto conservador [The meanings of Lulism: gradual reform and conservative pact]. Tempo Social. November 2012, 24 (2): 255–260. doi:10.1590/S0103-20702012000200014(Portuguese). 引文格式1維護:未識別語文類型 (link)