@article{
  author = {ziba kalam, fatemeh, Heydari, Samira},
  title = {A Survey of Collingwood’sEpistemological Approach and its Connotations in Curriculum},
  journal = {Epistemological researches},
  year = {2015},
  volume = {4},
  number = {9},
  pages = {7-30},
  doi = {}
}