1. Facebook, Meta, the metaverse and libraries;Fernandez;Libr. Hi Tech. News,2022
2. The extended reach of game engine companies: How companies like epic games and Unity technologies provide platforms for extended reality applications and the metaverse;Jungherr;Soc. Media Soc.,2022
3. Rymaszewski, M. (2007). Second Life: The Official Guide, John Wiley & Sons.
4. Vitón-Castillo, A.A., Fajardo Quesada, A.J., Romero Valdes, Y.d.l.C., and Batista Rivero, L. (2024, May 15). Metaverse: An Emerging Research Area. Available online: https://mr.saludcyt.ar/index.php/mr/article/view/3.
5. Ball, M. (2024, May 15). The Metaverse: What It Is. Where Find It, Who Will Build It, Fortnite. Available online: https://www.matthewball.co/all/themetaverse.