dotnet-add-reference
Add .NET project-to-project references.
TLDR
Add a reference to the project in the current directory
$ dotnet add reference [path/to/reference.csproj]
Add multiple references to the project in the current directory
$ dotnet add reference [path/to/reference1.csproj path/to/reference2.csproj ...]
Add a reference to the specific project
$ dotnet add [path/to/project.csproj] reference [path/to/reference.csproj]
Add multiple references to the specific project
$ dotnet add [path/to/project.csproj] reference [path/to/reference1.csproj path/to/reference2.csproj ...]