Auditing Data Changes in the Entity Framework

https://blogs.msdn.microsoft.com/simonince/2009/04/17/auditing-data-changes-in-the-entity-framework-part-1/

https://blogs.msdn.microsoft.com/simonince/2009/04/20/auditing-data-changes-in-the-entity-framework-part-2/

https://www.codeproject.com/Articles/1019511/Audit-trail-and-data-versioning-with-Csharp-and-MV

http://benjii.me/2014/03/track-created-and-modified-fields-automatically-with-entity-framework-code-first/

http://www.drowningintechnicaldebt.com/ShawnWeisfeld/archive/2011/07/26/auditing-with-entity-framework.aspx

http://www.jigar.net/articles/viewhtmlcontent344.aspx

https://www.exceptionnotfound.net/entity-change-tracking-using-dbcontext-in-entity-framework-6/