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Qudrat-Ullah, H. (2007). Improving the effectiveness of interactive learning environments through facilitation: An experimental study. In T. Bastiaens & S. Carliner (Eds.), Proceedings of E-Learn 2007--World Conference on E-Learning in Corporate, Government, Healthcare, and Higher Education (pp. 414-427). Quebec City, Canada: Association for the Advancement of Computing in Education (AACE).