Sung, Wen-Tsai, and Shih-Ching Ou. “Integrating Network, Cad and VR into the Design and Development of Web-Based Computer Graphics Learning Materials”. Malaysian Journal of Computer Science 14, no. 2 (December 1, 2001): 47–63. Accessed May 18, 2024. https://ejournal.um.edu.my/index.php/MJCS/article/view/5862.