[1] David J. Malan, Computer Science for Web Programming
https://www.edx.org/professional-certificate/harvardx-computer-science-for-web-programming

[2] Dr. Angela Yu, The Complete 2020 Web Development Bootcamp
https://www.udemy.com/course/the-complete-web-development-bootcamp/

[3] Mozilla Developer Network (MDN) Web Docs
https://developer.mozilla.org/en-US/docs/Web

[4] W3Schools
https://www.w3schools.com/default.asp

[5] CDN JS, Cloudflare
https://cdnjs.com/libraries