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Henriques, Francisca Gorjão and Luís Andrade de Sá “”Um, dois, três” faz hoje 33 anos” Publico, Dec 03, 1999. https://www.publico.pt/1999/12/03/jornal/um-dois-tres-faz-hoje-33-anos-127304 

Tang, Joe “THE 12-3 INCIDENT: A BOOK MISSING FROM THE BOOKSHELF OF MACAU,” Macau Closer, Jan, 2017. https://macaucloser.com/en/content/12-3-incident-book-missing-bookshelf-macau 

Beitler, Daniel “1-2-3 INCIDENT – 50TH ANNIVERSARY | PANELISTS DESCRIBE RIOTS, CALL FOR REMEMBRANCE” Macau Daily Times (Dec 05, 2016). https://macaudailytimes.com.mo/1-2-3-incident-50th-anniversary-panelists-describe-riots-call-remembrance.html