Dependency Inversion 📕 Articles Singleton vs Dependency Injection Don’t Call Constructors Unless You Have No Choice, And You Always Have a Choice Dependency Inversion Principle - DevIQ 📺 Videos The refactoring test (1) - Dependency Inversion & Unit tests | Cracking the .NET interview 🚀 Samples TanvirArjel/SolidPrinciples - Contains the clear examples of SOLID deign principles.