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Journal of Nonverbal Behavior > 2014 > 38 > 3 > 389-408
Educational Technology Research and Development > 2014 > 62 > 6 > 711-741
Journal of Nonverbal Behavior > 2014 > 38 > 3 > 389-408
Educational Technology Research and Development > 2014 > 62 > 6 > 711-741