@article{
  author = {Hoshyar, Mahdi, Agasi, A.V, KHalaj amir hoseini, یوسف},
  title = {Evaluation of changes the Arsenic element concentration in
groundwater in Shiraz and Gharebagh},
  journal = {},
  year = {2009},
  volume = {3},
  number = {4},
  pages = {25-36},
  doi = {}
}