@article{
  author = {Shahdkar, Fatemeh, torabi, taghi, Rahnama Roodposhti, 	Fereydoon },
  title = {Presenting a circular economy business model for knowledge-based companies},
  journal = { Roshd -e- Fanavari},
  year = {2023},
  volume = {19},
  number = {75},
  pages = {33-41},
  doi = {10.61186/jstpi.37987.19.75.33}
}