Face mask in public places during the Covid-19 period

Research the area of laws that about wear or not to wear a face mask in public places during the Covid-19 period. I have found some sources and overview. You may use these soureces to create an outline or you may use the other sources. I hope you can find some sources about the executive orders from the President, Governors or Mayers and related cases that definitely impacts businesses. Since I am still considering which sources to be used in the final paper, could you please help me to find the most useful sources for the outline?