UFOs Reference:

1. Halt, C. (1981). Rendlesham Forest Incident Report. Military Document.

2. Smith, R., Johnson, L., & Williams, P. (2020). Explaining UFO Sightings: Natural and

Human-Made Phenomena. Journal of the American Astronomical Society.

3. Brown, J., & Thompson, A. (2021). Advanced Experimental Aircraft and UFO Sightings.

International Journal of Aerospace Engineering.

4. Jones, R., & French, C. (2017). Cognitive Biases and UFO Sightings. *Journal of Abnormal

Psychology*.

5. https://daily.jstor.org/scientists-have-an-answer-to-how-the-egyptian-pyramids-were-built/

6. https://www.livescience.com/32616-how-were-the-egyptian-pyramids-built-.html