- https://www.vertabelo.com/blog/technical-articles/data-modeling-for-multiple-languages-how-to-design-a-localization-ready-system
- https://www.apphp.com/tutorials/index.php?page=multilanguage-database-design-in-mysql
- https://stackoverflow.com/questions/929410/what-are-best-practices-for-multi-language-database-design
- https://softwareengineering.stackexchange.com/questions/287187/an-approach-to-multilingual-db-design