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\bibitem{Wu2008} Wu, S., Chang, M., \& Heh, J.-S. (2008). Game-based Learning Scenes Design for Individual User in Ubiquitous Learning Environment. In \textit{In the Proceedings of the 3rd International Conference on E-Learning and Games} (pp. 451--462). Nanjing, China: In the Proceedings of the 3rd International Conference on E-Learning and Games.

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