The following post will mostly contain a number of good to have links regarding practices of building a SASS framework.
- https://sass-guidelin.es/#about-the-author
- http://bradfrost.com/blog/post/atomic-web-design/
- https://smacss.com/
- https://antjanus.com/blog/web-development-tutorials/front-end-development/why-its-a-good-idea-to-roll-your-own-css-framework/
- http://thesassway.com/advanced/building-a-css-framework-with-sass