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- Gu, Ning, Gul, Leman Figen, Williams, Anthony, Nakapan, Walaiporn. Emerald Group; 2009. Second Life: a context for design learning.
- Gu, Ning, Nakapan, Walaiporn, Williams, Anthony, Gul, Leman Figen. Les Presses de l'Universite de Montreal; 2009. Evaluating the use of 3D vitural worlds in collaborative design learning.
- Nakapan, Walaiporn, Gu, Ning, Gul, Leman Figen, Williams, Anthony. Department of Digital Media Design, National Yunlin University of Science & Technology; 2009. Nu genesis: a journal of unique designs in a virtual collaborative design studio.