Marxist Internet Archive (Bahasa Inggris) – https://www.marxists.org/
Marxist Internet Archive (Bahasa Indonesia) – https://www.marxists.org/indonesia/index.htm
In Defence of Marxism (Bahasa Inggris) – https://www.marxist.com/
In Defence of Marxism (Bahasa Indonesia) – https://www.marxist.com/id/