Anti Defamation League. 2019. “Free to Play? Hate, Harassment, and Positive Social Experiences in Online Games”. https://www.adl.org/free-to-play *Esta es una síntesis anotada realizada
“Murder and Extremism in the United States in 2018” Anti-Defamation League, A report from the Center on Extremism, 2019. https://bit.ly/2Rs5SAP Maltz, Judy. 2019.
