@article{
  author = {pouralizadeh, Mojgan},
  title = {A DEA Model for Estimating Directional Return to Scale in Sustainable Supply Chains: A Case Study in the Power Industry},
  journal = {Journal of New Researches in Mathematics},
  year = {2025},
  volume = {11},
  number = {6},
  pages = {0-0},
  doi = {10.30495/jnrm.2023.71655.2380}
}