| • | Chapter 4, "Class Fundamentals," Chapter 5, "Inheritance," and Chapter 6, "Interfaces and Delegates," of Programming Microsoft Visual Basic .NET by Francesco Balena [Microsoft Press, 2002, ISBN: 0735613753] |
| • | These topics in the .NET SDK documentation: inheritance, polymorphism, encapsulation, type, System.Object, Overridable, Overrides, Shadows, Friend, Protected, NotInheritable, MustInherit, and MustOverride |