@article{
  author = {ashrafi, ashraf sadat, Asad, Mohammadreza, Asgari, Fateme},
  title = {Analysis and study of elements and artistic images of nature in the poems of Saadi and Petrarch with emphasis on illustrated copies},
  journal = {زیبایی‌شناسی ادبی},
  year = {2021},
  volume = {12},
  number = {48},
  pages = {77-106},
  doi = {}
}