Teacher professional development. Vrasidas C, Glass GV. C Vrasidas, GV Glass - Online professional development for …, 2004 - books.google.com GSID: Pl1vfmu2YBQJ
Virtual professional learning communities: Teachers' perceptions of virtual versus face-to-face professional development. [No authors listed] GSID: WAIhNiY_0eEJ
How and why educators use Twitter: A survey of the field. Carpenter JP, Krutka DG. JP Carpenter, DG Krutka - Journal of research on technology in …, 2014 - Taylor & Francis GSID: cjc1-25YlgwJ
Engagement through microblogging: Educator professional development via Twitter. Carpenter JP, Krutka DG. JP Carpenter, DG Krutka - Professional development in education, 2015 - Taylor & Francis GSID: gbyGcIRUMr8J
