- Author: Ng Deborah
- Language: English
- Year: 2012
- Author: Kraut Robert E., Resnick Paul, Kiesler Sara, Burke Moira, Chen Yan, Kittur Niki, Konstan Joseph, Ren Yuqing, Riedl John
- Language: English
- Year: 2012
- Author: Kiesler Sara, Kraut Robert E., Resnick Paul
- Language: English
- Year: 2012