@article{
  author = {, , , },
  title = {A Corpus-based Approach toward Modal Verbs of Six Texts from 6th Century },
  journal = {Pazhūhish-i Źabān  va Adabiyyāt-i Farsī},
  year = {2014},
  volume = {12},
  issue = {34},
  pages = {1-10},
  doi = {},
  url = {https://rimag.ir/fa/Article/9917}
}