Memahami Thanos: Malthuanism dan The Great Filter

[2] "Ethics-virtue", Stanford Encyclopedia of Philosophy

[3] "Malthus' Principle of Population". BRIA 26 2 The Debate Over World Population: Was Malthus Right?. 26. Constitutional Rights Foundation (CRF). Winter 2010

[4] Hanson, Robin (1998). "The Great Filter - Are We Almost Past It?" http://mason.gmu.edu/~rhanson/greatfilter.html