https://mva.microsoft.com/en-us/training-courses/c-fundamentals-for-absolute-beginners-16169?l=Lvld4EQIC_2706218949

https://app.pluralsight.com/paths/skills/csharp

https://app.pluralsight.com/library/courses/csharp-6-from-scratch/table-of-contents

https://dotnetcademy.net/CSharp/Beginner

http://www.completecsharptutorial.com/basic/

https://www.microsoft.com/net/tutorials/csharp/getting-started

http://www.c-sharpcorner.com/article/free-book-C-Sharp-programming-for-beginners/

http://www.homeandlearn.co.uk/csharp/csharp.html

https://www.codeschool.com/courses/try-c-sharp

https://www.codeproject.com/Articles/1158224/Learn-Csharp-CSharp-Step-by-Step-Beginners-Tutoria