Initiation to Civili ...

1-http://www.ushistory.org/civ/

2-https://www.ancient.eu/

3-http://www.universityofcalicut.info/syl/BBACultureandCivilization.pdf

4-https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1850&context=ccr

5-https://www.britannica.com