1. SEO 2020: learn search engine optimization with smart internet marketing strategies Clarke, Adam (Google certified professional), Columbia, South Carolina : Simple Effectiveness Publishing, 2020 JOUR395
2. Unity 2020 virtual reality projects: learn VR development by building immersive applications and games with Unity 2019.4 and later versions Linowes, Jonathan, Birmingham, UK : Packt Publishing, 2020. MDIT320 MDIT310
