nam.nguyenhoai – Nguyễn Hoài Nam

Principles For Programmers

Refactoring, Design Patterns

https://refactoring.guru/

The structure of creator classes

UML Cheatsheet

https://loufranco.com/wp-content/uploads/2012/11/cheatsheet.pdf

UMLet – Free UML Tool

https://www.umlet.com/

Web APIs

Số đẹp, chúc mừng năm mới.