Types, Classes, and Modules in Ruby - Coding Ninjas
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Understanding the Ruby Object Model In Depth - Honeybadger Developer Blog
Ruby (Programmiersprache) – Wikipedia
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How to Use The Ruby Alias Keyword - RubyGuides
Ruby Code Editor SketchUp Extension (v.3.0) - YouTube
Use the following ruby code to get started. require | Chegg.com
Metaprogramming: Writing in Ruby with... Ruby | Toptal®
Get the Lowdown on Ruby Modules — SitePoint
Modules in Ruby: The one that cannot be instantiated like Class! | CodeX
Ruby Tutorial – Learn About Ruby for Free!
Ruby Cookbook: Modules and Namespaces – O'Reilly
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Ruby modules: Include vs Prepend vs Extend | by Léonard Hetsch | Medium
ruby - Overriding method by another defined in module - Stack Overflow
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Ruby modules in-depth
