@article{
  author = {Khalkhali, Ali, Shakibaei, Zohreh, Andesh, Mehdi},
  title = {Meta-Analysis on the Impact of ICT on Teachers' Professional Development},
  journal = {Information and Communication Technology in Educational Sciences},
  year = {2011},
  volume = {1},
  number = {3},
  pages = {165-183},
  doi = {}
}