Observer Pattern Courses

Functional Program Design in Scala
École Polytechnique Fédérale de Lausanne via Coursera

C# Scripting in Unity: The Observer Pattern
Pluralsight

C# Design Patterns: Part 1 (2016)
LinkedIn Learning

C# Design Patterns: Part 2
LinkedIn Learning

Java EE: Design Patterns and Architecture
LinkedIn Learning

Programming Foundations: Design Patterns
LinkedIn Learning

Using Generics in C#
LinkedIn Learning

Design Patterns in C++: Behavioral - Observer to Visitor
Pluralsight

Typescript Design Patterns (Object-oriented programming)
Skillshare

Padrões de Projeto em JAVA na Prática!
Udemy