@article{
  author = {یوسفی, KH., زبرجد, S.M, وحدتی خاکی, J.},
  title = {Taguchi Statistical Method to Optimize the Experimental Conditions for the Nano Hydroxyapatite Production by Sol – Gel Method},
  journal = {journal of New Materials},
  year = {2014},
  volume = {4},
  number = {5},
  pages = {1-10},
  doi = {}
}