1.
Alan B. Craig. Developing Virtual Reality Applications. (Morgan Kaufmann/Elsevier, Amsterdam, 2009).
2.
Mel Slater, Anthony Steed, & Yiorgos Chrysanthou. Computer Graphics and Virtual Environments. (Addison Wesley).
3.
Mel Slater, Anthony Steed, & Yiorgos Chrysanthou. Computer Graphics and Virtual Environments. (Addison Wesley).
4.
3D User Interfaces. (Addison-Wesley, Boston, 2005).
5.
Module Moodle Page. https://moodle.ucl.ac.uk/enrol/index.php?id=11233.