@article{
  author = {faramarz, reza, ghaedan, asghar},
  title = {Taxes and Illegitimate Modes of Unprecedented Income and Its Consequences on the Economy of the Umayyad Era},
  journal = {Journal of History},
  year = {2015},
  volume = {9},
  number = {35},
  pages = {1-27},
  doi = {}
}