Egyptian Pyramids

How were the pyramids built? Although it is clear that the Egyptian pyramids
were manmade, not everyone agrees (anyone seen Ancient Aliens?). How would you
convince a skeptic otherwise, with an evidence-based approach? Don’t focus only on how
the stone blocks were lifted into place build a broader argument based on how the
Egyptians utilised natural resources, manpower and engineering knowledge. Include one or
two sentences stating why you think it is important to counteract pseudoscience.

I also already wrote an annotated bibliography on this topic. I have 4 sources there and I will need 6 more.