Diane L. Schallert, Yueh-hui Vanessa Chiang, Yangjoo Park, Michelle E. Jordan, Haekyung Lee, An-Chih Janne Cheng, Hsiang-Ning Rebecca Chu, SoonAh Lee, Taehee Kim, Kwangok Song. Being polite while fulfilling different discourse functions in online classroom discussions. Computers & Education, 53(3):713-725, 2009. [doi]
Abstract is missing.