C# Using reflection to get all types from all libraries

I'm trying to build a dependency management tool. So I need to get all the classes from all the libraries.

There are three projects written in C#, .NET Core 3.0.

• ProjectA
• ProjectB
• ProjectC

And ProjectA reference ProjectB. ProjectB reference ProjectC.

ProjectA -> ProjectB -> ProjectC

For code in ProjectC:

// In ProjectC
Assembly.GetExecutingAssembly().GetTypes()
// That can list all classes in ProjectC.

And for code in ProjectC:

// In ProjectC
Assembly.GetEntryAssembly().GetTypes()
// That can list all classes in ProjectA.

But how can I list all classes in ProjectB?